User manual

CY7C67200
Document #: 38-08014 Rev. *G Page 27 of 78
Host n SOF/EOP Count Register [R/W]
• Host 1 SOF/EOP Count Register 0xC092
• Host 2 SOF/EOP Count Register 0xC0B2
Figure 27. Host n SOF/EOP Count Register
Register Description
The Host n SOF/EOP Count register contains the SOF/EOP
Count Value that is loaded into the SOF/EOP counter. This
value is loaded each time the SOF/EOP counter counts down
to zero. The default value set in this register at power-up is
0x2EE0, which will generate a 1-ms time frame. The
SOF/EOP counter is a down counter decremented at a
12-MHz rate. When this register is read, the value returned is
the programmed SOF/EOP count value.
Count (Bits [13:0])
The Count field sets the SOF/EOP counter duration.
Reserved
All reserved bits must be written as ‘0’.
Host n SOF/EOP Counter Register [R]
• Host 1 SOF/EOP Counter Register 0xC094
• Host 2 SOF/EOP Counter Register 0xC0B4
Figure 28. Host n SOF/EOP Counter Register
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.
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 Reserved Count...
Read/Write - - R/W R/W R/W R/W R/W R/W
Default 0 0 1 0 1 1 1 0
Bit # 7 6 5 4 3 2 1 0
Field ...Count
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Default 1 1 1 0 0 0 0 0
Bit # 15 14 13 12 11 10 9 8
Field Reserved Counter...
Read/Write - - R R R R R R
Default X X X X X X X X
Bit # 7 6 5 4 3 2 1 0
Field ...Counter
Read/Write R R R R R R R R
Default X X X X X X X X
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