W83877ATF Datasheet, PDF (137/191 Pages) Winbond – enhanced version from Winbonds most popular I/O chip W83877F

W83877ATF
Bit 1-0: PIN93FUN1~0 - Pin 93 function select.
ENPNF(CR16.Bit7)
PIN93FUN1
0
0
0
0
0
1
0
1
1
X
PIN93FUN0
0
1
0
1
X
Pin 93
IRQIN
DRQ_D
IRSL2
IRRXH/IRSL0
PNF
8.2.36 Configuration Registers (CR2C)
When the device is in Extended Function mode and EFIR is 2CH, the CR2C register can be accessed
through EFDR. This register default value is 10₁₆. The bit definitions are as follows:
765
43
21
0
Reserved
Reserved
CLKINSEL
ENBNKSEL
APEDCRC
PIN91FUN0
PIN91FUN1
PIN91FUN2
Bit 7-2 : PIN91FUN2~0 - Pin 91 function select.
IRQMODS^*
PIN91FUN2
PIN91FUN1
PIN91FUN0
Pin 91
0
0
0
0
IRQ_H
0
0
0
1
Reserved
0
0
1
0
IRSL2
0
0
1
1
Reserved
0
1
0
0
DACK_D
1
X
X
X
SERIRQ
* Note that the bit IRQMODS is defined in CR31.Bit2, that is, a IRQ mode selection.
Note: The IRSL0/IRRXH selection is determined by Bit 5(IRSL0 Mode selection) of Register7 of
Bank7. When setting Bit 5 to logical 1, IRSL0 is selected; When setting Bit 5 to logical 0, IRRXH is
selected.
Bit 4 :APEDCRC - Append CRC to receiver when a frame is end.
= 0 No append hardware CRC value as data in FIR/MIR mode
= 1 Append hardware CRC value as data in FIR/MIR mode
- 133 -
Publication Release Date: April 1998
Version 0.51