W83977ATF Datasheet, PDF (86/207 Pages) Winbond – WINBOND I/O

W83977ATF
PRELIMINARY
4.4.5 Reg6 - Transmitter FIFO Depth (TXFDTH) (Read Only)
Mode
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Advanced IR
0
Reset Value
0
0
TXFD5 TXFD4 TXFD3
0
0
0
0
Bit 2
TXFD2
0
Bit 1
TXFD1
0
Bit 0
TXFD1
0
Bit 7~6:
Bit 5~0:
Reserved, Read 0.
Reading these bits returns the current transmitter FIFO depth, that is, the number of
bytes left in the transmitter FIFO.
4.4.6 Reg7 - Receiver FIFO Depth (RXFDTH) (Read Only)
Mode
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Advanced IR
0
Reset Value
0
0
RXFD5 RXFD4 RXFD3
0
0
0
0
Bit 2
RXFD2
0
Bit 1
RXFD1
0
Bit 0
RXFD1
0
Bit 7~6:
Bit 5~0:
Reserved, Read 0.
Reading these bits returns the current receiver FIFO depth, that is, the number of bytes
left in the receiver FIFO.
4.5 Set3 - Version ID and Mapped Control Registers
Address Offset Register Name
Register Description
0
AUID
Advanced IR ID
1
MP_UCR Mapped IR Control Register
2
MP_UFR Mapped IR FIFO Control Register
3
SSR
Sets Select Register
4
Reversed
-
5
Reserved
-
6
Reserved
-
7
Reserved
-
4.5.1 Reg0 - Advanced IR ID (AUID)
This register is read only. It stores advanced IR version ID. Reading it returns 1XH.
Reg.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
SSR
SSR7 SSR6 SSR5 SSR4 SSR3 SSR2 SRR1
Default Value
0
0
0
1
X
X
X
Bit 0
SRR0
X
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Publication Release Date:April 1998
Revision 0.52