W83977ATF Datasheet, PDF (87/207 Pages) Winbond – WINBOND I/O

W83977ATF
PRELIMINARY
4.5.2 Reg1 - Mapped IR Control Register (MP_UCR)
This register is read only. Reading this register returns IR Control Register value of Set 0.
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
0
0
0
0
Bit 0
SRR0
0
4.5.3 Reg2 - Mapped IR FIFO Control Register (MP_UFR)
This register is read only. Reading this register returns IR FIFO Control Register (UFR) value of SET
0.
Reg.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SSR
SSR7 SSR6 SSR5 SSR4 SSR3 SSR2 SRR1 SRR0
Default Value
0
0
0
0
0
0
0
0
4.5.4. Reg3 - Sets Select Register (SSR)
Reading this register returns E4H. Writing a value selects a Register Set.
Reg.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
SSR
SSR7 SSR6 SSR5 SSR4 SSR3 SSR2
Default Value
1
1
1
0
0
1
Bit 1
SRR1
0
Bit 0
SRR0
0
4.6 Set4 - TX/RX/Timer counter registers and IR control registers.
Address Offset Register Name
Register Description
0
TMRL
Timer Value Low Byte
1
TMRH
Timer Value High Byte
2
IR_MSL
Infrared Mode Select
3
SSR
Sets Select Register
4
TFRLL
Transmitter Frame Length Low Byte
5
TFRLH
Transmitter Frame Length High Byte
6
RFRLL
Receiver Frame Length Low Byte
7
RFRLH
Receiver Frame Length High Byte
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Publication Release Date:April 1998
Revision 0.52