CY7C67300
Host n SOF/EOP Counter Register [R]
■Host 1 SOF/EOP Counter Register 0xC094
■Host 2 SOF/EOP Counter Register 0xC0B4
Table 60. Host n SOF/EOP Counter Register
Bit # | 15 |
| 14 | 13 | 12 | 11 |
| 10 | 9 | 8 |
Field | Reserved |
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| Counter... |
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Read/Write | - |
| - | R | R | R |
| R | R | R |
Default | X |
| X | X | X | X |
| X | X | X |
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Bit # | 7 | 6 | 5 | 4 |
| 3 | 2 | 1 | 0 |
Field |
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| ...Counter |
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| |
Read/Write | R | R | R | R |
| R | R | R | R |
Default | X | X | X | X |
| X | X | X | X |
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Register Description
The Host n SOF/EOP Counter register contains the current value of the SOF/EOP down counter. This value can be used to determine the time remaining in the current frame.
Host n Frame Register [R]
■Host 1 Frame Register 0xC096
■Host 2 Frame Register 0xC0B6
Table 61. Host n Frame Register
Counter (Bits [13:0])
The Counter field contains the current value of the SOF/EOP down counter.
Bit # | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
Field |
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| Reserved |
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| Frame... |
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Read/Write | - | - | - | - | - | R | R | R |
Default | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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Bit # | 7 | 6 | 5 | 4 |
| 3 | 2 | 1 | 0 |
Field |
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| ...Frame |
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Read/Write | R | R | R | R |
| R | R | R | R |
Default | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 |
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Register Description
The Host n Frame register maintains the next frame number to be transmitted (current frame number + 1). This value is updated after each SOF transmission. This register resets to 0x0000 after each CPU write to the Host n SOF/EOP Count register (Host 1: 0xC092 Host 2: 0xC0B2).
Frame (Bits [10:0])
The Frame field contains the next frame number to be trans- mitted.
Reserved
Write all reserved bits with ’0’.
Document #: | Page 37 of 99 |
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