W83877 Winbond Electronics Corp America, W83877 Datasheet - Page 101

• Manufacturer Part Number: W83877
• Description: Winbond I/O
• Manufacturer: Winbond Electronics Corp America

8.2.33 Configuration Register 28 (CR28)
When the device is in Extended Function mode and EFIR is 28, the CR28 register can be accessed
through EFDR. Default = 43H if CR6 bit 2 = 1; default = 00H if CR16 bit 2 = 0. The bit definitions are
as follows:
URAIQS3-URAIQS0 (bit 7-bit 4): Allocate interrupt resource for UART A.
URBIQS3-URBIQS0 (bit 3-bit 0): Allocate interrupt resource for UART B.
8.2.34 Configuration Register 29 (CR29)
When the device is in Extended Function mode and EFIR is 29, the CR29 register can be accessed
through EFDR. Default = 62H if CR6 bit 2 = 1; default = 00H if CR16 bit 2 = 0. The bit definitions are
as follows:
FDCIQS3-FDCIQS0 (bit 7-bit 4): Allocate interrupt resource for FDC.
IQNIQS3-IQNIQS0 (bit 3-bit 0): Allocate interrupt resource for IRQIN.
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Publication Release Date: January 1996
URBIQS0
URBIQS1
URBIQS2
URBIQS3
URAIQS0
URAIQS1
URAIQS2
URAIQS3
IQNIQS0
IQNIQS1
IQNIQS2
IQNIQS3
FDCIQS0
FDCIQS1
FDCIQS2
FDCIQS3
W83877F
Revision A2