Functions of Components
IPC-BX/M560(PCW)
45
Table 5.10. Register Functions
<1/4>
THR: Transmitter Holding Register [DLAB=0]
D7
D6
D5
D4
D3
D2
D1
D0
bit7
MSB
bit0
LSB
Dedicated register for writing transmit data
03F8H
I/O address
Contents
RBR: Reciever Buffer Register [DLAB=O]
D7
D6
D5
D4
D3
D2
D1
D0
bit7
MSB
bit0
LSB
Dedicated register for reading transmit data
03F8H
DLL: Divisor Latch (LSB) [DLAB=1]
D7
D6
D5
D4
D3
D2
D1
D0
bit7
MSB
bit0
LSB
Baud rate setting register (LSB)
03F8H
D7
D6
D5
D4
D3
D2
D1
D0
bit7
MSB
bit0
LSB
Baud rate setting register (MSB)
03F9H
IER: Interrupt Enable Register [DLAB=0]
D7
D6
D5
D4
D3
D2
D1
D0
0
03F9H
DLH: Divisor Latch (MSB) [DLAB=1]
0
0
0
EMS ELSI
ETHREI ERDAI
Receive data
interrupt enable
Receive data register empty
interrupt enable
Receiver line status
interrupt enable
Modem status interrupt enable
[Always 0]
1: Interrupt enable
0: Interrupt disable
Содержание IPC-BX/M560
Страница 1: ...BOX PC IPC BX M560 PCW User s Manual...
Страница 11: ...IPC BX M560 PCW x...
Страница 45: ...BIOS Setup IPC BX M560 PCW 34...
Страница 89: ...A 46 056 LZJ2611 021030 990817...