Cypress CY7C67300 Manual De Usuario
CY7C67300
Document #: 38-08015 Rev. *J
Page 37 of 99
Host n SOF/EOP Counter Register [R]
■
Host 1 SOF/EOP Counter Register 0xC094
■
Host 2 SOF/EOP Counter Register 0xC0B4
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.
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.
down counter.
Host n Frame Register [R]
■
Host 1 Frame Register 0xC096
■
Host 2 Frame Register 0xC0B6
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).
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.
mitted.
Reserved
Write all reserved bits with ’0’.
Table 60. Host n SOF/EOP Counter Register
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
Table 61. Host n Frame Register
Bit #
15
14
13
12
11
10
9
8
Field
Reserved
Frame...
Read/Write
-
-
-
-
-
R
R
R
Default
0
0
0
0
0
0
0
0
Bit #
7
6
5
4
3
2
1
0
Field
...Frame
Read/Write
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
0