參數(shù)資料
型號(hào): CD1865
廠商: Intel Corp.
英文描述: Intelligent Eight-Channel Communications Controller
中文描述: 智能八通道通信控制器
文件頁數(shù): 105/150頁
文件大?。?/td> 871K
代理商: CD1865
Intelligent Eight-Channel Communications Controller
CD1865
Datasheet
105
9.2.3.2
Modem Request Acknowledge Register\
9.2.3.3
Transmit Request Acknowledge Register
9.2.3.4
Receive Request Acknowledge Register
The Service Request Acknowledge registers are read-only registers that return an appropriate
interrupt vector when read. Reading one of these registers has the effect of a service
acknowledgment cycle in the CD1865 (not necessarily the one addressed; it may be one further
down the daisy chain). The vector supplied on the data bus during the cycle is described under the
Global Service Vector register description. RegAckEn must be set for these registers to operate
properly.
Register Name:
Register Description: Modem Request Acknowledge Register
Default Value: 80
Access: Read only
Bit 7
Bit 6
8-Bit Hex Address: $75
Intel Hex Address: $EA
Motorola Hex Address: $EB
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Modified Interrupt Vector provided on read
Register Name:
Register Description: Transmit Request Acknowledge Register
Default Value: 80
Access: Read only
Bit 7
Bit 6
8-Bit Hex Address: $76
Intel Hex Address: $EC
Motorola Hex Address: $ED
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Modified Interrupt Vector provided on read
Register Name:
Register Description: Receive Request Acknowledge Register
Default Value: 80
Access: Read only
Bit 7
Bit 6
8-Bit Hex Address: $77
Intel Hex Address: $EE
Motorola Hex Address: $EF
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Modified Interrupt Vector provided on read
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