III PERIPHERAL BLOCK: INPUT/OUTPUT PORTS
Register name | Address | Bit | Name |
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| Setting | Init. | R/W | Remarks | ||
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Port SIO | 00402D7 | – | reserved |
| – |
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| – | – |
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function |
| D3 | CFP322 | P32 function selection 2 | 1 | – | 0 | P32/ | 0 | R/W | Always set to 0. | |
extension |
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| #DMAACK0 |
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register |
| D2 | CFP152 | P15 function selection 2 | 1 | – | 0 | P15/EXCL4/ | 0 | R/W | Always set to 0. | |
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| #DMAEND0 |
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| D1 | CFP162 | P16 function selection 2 | 1 | – | 0 | P16/EXCL5/ | 0 | R/W | Always set to 0. | |
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| #DMAEND1 |
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| D0 | CFP332 | P33 function selection 2 | 1 | – | 0 | P33/ | 0 | R/W | Always set to 0. | |
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| #DMAACK1 |
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P2 function | 00402D8 | D7 | CFP27 | P27 function selection | 1 | TM5 | 0 | P27 | 0 | R/W |
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select register | (B) | D6 | CFP26 | P26 function selection | 1 | TM4 | 0 | P26 | 0 | R/W |
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| D5 | CFP25 | P25 function selection | 1 | TM3 | 0 | P25 | 0 | R/W |
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| D4 | CFP24 | P24 function selection | 1 | TM2 | 0 | P24 | 0 | R/W |
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| D3 | CFP23 | P23 function selection | 1 | TM1 | 0 | P23 | 0 | R/W |
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| D2 | CFP22 | P22 function selection | 1 | TM0 | 0 | P22 | 0 | R/W |
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| D1 | CFP21 | P21 function selection | 1 | #DWE | 0 | P21 | 0 | R/W | Ext. func.(0x402DF) | |
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| D0 | CFP20 | P20 function selection | 1 | #DRD | 0 | P20 | 0 | R/W |
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P2 I/O port data | 00402D9 | D7 | P27D | P27 | I/O port data | 1 | High | 0 | Low | 0 | R/W |
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register | (B) | D6 | P26D | P26 | I/O port data |
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| 0 | R/W |
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| D5 | P25D | P25 | I/O port data |
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| 0 | R/W |
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| D4 | P24D | P24 | I/O port data |
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| 0 | R/W |
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| D3 | P23D | P23 | I/O port data |
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| 0 | R/W |
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| D2 | P22D | P22 | I/O port data |
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| 0 | R/W |
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| D1 | P21D | P21 | I/O port data |
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| 0 | R/W |
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| D0 | P20D | P20 | I/O port data |
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| 0 | R/W |
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P2 I/O control | 00402DA | D7 | IOC27 | P27 | I/O control | 1 | Output | 0 | Input | 0 | R/W |
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register | (B) | D6 | IOC26 | P26 | I/O control |
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| 0 | R/W |
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| D5 | IOC25 | P25 | I/O control |
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| 0 | R/W |
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| D4 | IOC24 | P24 | I/O control |
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| 0 | R/W |
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| D3 | IOC23 | P23 | I/O control |
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| 0 | R/W |
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| D2 | IOC22 | P22 | I/O control |
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| 0 | R/W |
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| D1 | IOC21 | P21 | I/O control |
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| 0 | R/W |
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| D0 | IOC20 | P20 | I/O control |
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| 0 | R/W |
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Port SIO | 00402DB | – | reserved |
| – |
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| – | – |
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function |
| D3 | SSRDY2 | Serial I/F Ch.2 SRDY selection | 1 | #SRDY2 | 0 | P24/TM2 | 0 | R/W |
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extension |
| D2 | SSCLK2 | Serial I/F Ch.2 SCLK selection | 1 | #SCLK2 | 0 | P25/TM3 | 0 | R/W |
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register |
| D1 | SSOUT2 | Serial I/F Ch.2 SOUT selection | 1 | SOUT2 | 0 | P26/TM4 | 0 | R/W |
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| D0 | SSIN2 | Serial I/F Ch.2 SIN selection | 1 | SIN2 | 0 | P27/TM5 | 0 | R/W |
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P3 function | 00402DC | – | reserved |
| – |
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| – | – | 0 when being read. | ||
select register | (B) | D5 | CFP35 | P35 function selection | 1 | #BUSACK | 0 | P35 | 0 | R/W |
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| D4 | CFP34 | P34 function selection | 1 | #BUSREQ | 0 | P34 | 0 | R/W |
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| #CE6 |
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| D3 | CFP33 | P33 function selection 1 | 1 | #DMAACK1 | 0 | P33 | 0 | R/W |
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| D2 | CFP32 | P32 function selection 1 | 1 | #DMAACK0 | 0 | P32 | 0 | R/W |
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| D1 | CFP31 | P31 function selection | 1 | #BUSGET | 0 | P31 | 0 | R/W | Ext. func.(0x402DF) | |
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| D0 | CFP30 | P30 function selection | 1 | #WAIT | 0 | P30 | 0 | R/W |
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| #CE4/#CE5 |
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P3 I/O port data | 00402DD | – | reserved |
| – |
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| – | – | 0 when being read. | ||
register | (B) | D5 | P35D | P35 | I/O port data |
| High | 0 | Low | 0 | R/W |
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| D4 | P34D | P34 | I/O port data |
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| 0 | R/W |
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| D3 | P33D | P33 | I/O port data |
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| 0 | R/W |
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| D2 | P32D | P32 | I/O port data |
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| 0 | R/W |
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| D1 | P31D | P31 | I/O port data |
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| 0 | R/W |
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| D0 | P30D | P30 | I/O port data |
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| 0 | R/W |
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P3 I/O control | 00402DE | – | reserved |
| – |
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| – | – | 0 when being read. | ||
register | (B) | D5 | IOC35 | P35 | I/O control |
| Output | 0 | Input | 0 | R/W |
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| D4 | IOC34 | P34 | I/O control |
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| 0 | R/W |
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| D3 | IOC33 | P33 | I/O control |
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| 0 | R/W |
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| D2 | IOC32 | P32 | I/O control |
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| 0 | R/W |
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| D1 | IOC31 | P31 | I/O control |
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| 0 | R/W |
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| D0 | IOC30 | P30 | I/O control |
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| 0 | R/W |
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S1C33210 FUNCTION PART | EPSON |