CD1865 Datasheet, PDF (103/150 Pages) Intel Corporation – Intelligent Eight-Channel Communications Controller

Intelligent Eight-Channel Communications Controller — CD1865
9.2.3
9.2.3.1
Service Request/Interrupt Control Registers
Service Request Status Register
Register Name:
Register Description: Service Request Status Register
Default Value: 0
Access: Read only
Bit 7
Bit 6
Bit 5
Bit 4
ILV[1]
ILV[0]
ext
int
Bit 3
ext
Bit 2
int
8-Bit Hex Address: $65
Intel Hex Address: $CA
Motorola Hex Address: $CB
Bit 1
Bit 0
ext
int
The i-level bits, ILV[1] and ILV[0], are the current context code from the service request context
stack. They are encoded as follows:
Datasheet
103