III PERIPHERAL BLOCK: MONITORED MOBILE ACCESS INTERFACES
Communications Mode
Next configure the mobile access interface pins with the MSEL pin input level and communications macro select (MCRS) register (D[1:0]/0x200000). (See Table 10.4.)
The default MCRS setting, after an initial reset, is 00, which specifies UART or serial IF Ch. 3.
|
| Table 10.4 Communications Mode | |||
MSEL Input | MCRS1 |
| MCRS0 | Communications | Target Mobile Device |
Level |
|
|
| Mode |
|
High | 1 |
| 1 | PHS | PHS |
|
|
|
| communications |
|
High | 1 |
| 0 | PDC | PDC |
|
|
|
| communications |
|
High | 0 |
| 1 | HDLC | PDC device supporting |
|
|
|
| communications | packets |
High | 0 |
| 0 | UART | CdmaOne |
|
|
|
| communications |
|
Low | 0 |
| 0 | Serial IF Ch. 3 |
|
PHS Signal Format
Next use the BMODE, BHALF, and FMODE bits in the communications block PHS mode settings register (D[2:0]/0x0200010) to configure the PHS signal format to match the target PHS device. Table 10.5 and Figure
10.2through Figure 10.6 summarize the signal formats available. Use only the combinations given.
The default setting, after an initial reset, BMODE, BHALF and FMODE are set to 000. These settings are ignored by all communications modes other than PHS.
|
|
| Table 10.5 PHS Signal Formats |
|
| |
BMODE | BHALF | FMODE | Frame Signal | Bit Clock Frequency | Data Transfer | Figure |
|
|
| Frequency |
| Rate |
|
0 | 0 | 0 | 200 Hz (5ms) | 32 kHz | 32 kbps | Figure 10.2 |
|
|
| 200 Hz (5ms) | 64 kHz | 64 kbps | Figure 10.3 |
1 | 0 | 1 | 8 kHz | 32 kHz | 32 kbps | Figure 10.4 |
|
|
| 8 kHz | 64 kHz | 64 kbps | Figure 10.5 |
1 | 1 | 1 | 8 kHz | 64 kHz | 32 kbps | Figure 10.6 |
PIAFS frame period
Frame signal period
DCD (frame signal)
CTS (bit clock, 32 kHz)
TXD and RXD (data signals)
32 kbps: 20 ms
5 ms | 5 ms |
| 5 ms | 5 ms |
|
|
|
|
|
0 1 2 3 4 5 6 7 8 
(Total 640 bits)
Figure 10.2 PHS Signal Format (1)
S1C33210 FUNCTION PART | EPSON |