W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 145

• Manufacturer Part Number: W83977AF
• Description: W83877TF Plus Kbc, Cir, RTC
• Manufacturer: Information Storage Devices, Inc

CR74 (Default 0x04)
CR75 (Default 0x04)
CRF0 (Default 0x00)
mode
Bit 7-3 : Reserved.
Bit 2-0 : These bits select DRQ resource for RX of UART C.
Bit 7-3 : Reserved.
Bit 2-0 : These bits select DRQ resource for TX of UART C.
Bit 7-4 : Reserved.
Bit 3 : RXW4C
Bit 2 : TXW4C
Bit 1 : APEDCRC
Bit 0 : ENBNKSEL; Bank select enable
= 0x00 DMA0
= 0x01 DMA1
= 0x02 DMA2
= 0x03 DMA3
= 0x04-0x07 No DMA active
= 0x00 DMA0
= 0x01 DMA1
= 0x02 DMA2
= 0x03 DMA3
= 0x04-0x07 No DMA active
= 0
= 1
= 0
= 1
= 0
= 1
= 0
= 1
to RX mode.
to TX mode.
No reception delay when SIR is changed from TX mode to RX mode.
Reception delays 4 characters-time(40 bit-time) when SIR is changed from TX mode
No transmission delay when SIR is changed from RX mode to TX mode.
No append hardware CRC value as data in FIR/MIR mode.
Append hardware CRC value as data in FIR/MIR mode.
Disable IR Bank selection.
Enable IR Bank selection.
Transmission delays 4 characters-time(40 bit-time) when SIR is changed from RX
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W83977F/ W83977AF
Publication Release Date: March 1998
PRELIMINARY
Revision 0.58