Fastwel CPB902, Руководство пользователя

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Functional Description CPB902
C P B 9 0 2 U s e r M a n u a l
27
© 2 0 0 8 F a s t w e l v . 1 . 5 b E
Port
(hex)
Bit Read Write Value Comment
0 yes yes 0
Switching DMA acknowledgement (DACENC=2)
to /FDC_DACK2 line
1
Switching DMA acknowledgement (DACENC=2)
to /PC104_DACK2 line
0
Switching DMA acknowledgement (DACENC=3)
to /FBUS_DACK1 line
1 yes yes
1
Switching DMA acknowledgement (DACENC=3)
to /PC104_DACK3 line
0
Switching DMA acknowledgement (DACENC=5)
to /FBUS_DACK2 line
2 yes yes
1
Switching DMA acknowledgement (DACENC=5)
to /PC104_DACK5 line
0 DMA request (DRQ2) received via FDC_DRQ2 line
3 yes yes
1 DMA request (DRQ2) received via PC104_DRQ2 line
0 DMA request (DRQ3) received via FBUS_DRQ1 line
4 yes yes
1 DMA request (DRQ3) received via PC104_DRQ3 line
0 DMA request (DRQ5) received via FBUS_DRQ2 line
5 yes yes
1 DMA request (DRQ5) received via PC104_DRQ5 line
–
6 no no
–
–
–
311*
7 no no
–
–
0
0 yes
1
FBUS unit: FAULT line status (1 – "Data Unreliable" error)
0
1 yes
1
FBUS unit: FERR line status (1 – "Frame Error")
0
2 yes
1
FBUS unit: T_ERR line status (1 – "Timeout" error)
0
3 yes
1
FBUS unit: TXMODE line status
(1 – FBUS unit in data transmission mode)
0
4 yes
1
FBUS unit: RXMODE line status
(1 – FBUS unit in data reception mode)
0
5 yes
1
FBUS unit: CHECKMODE line status
(1 – FBUS unit in data validity check mode)
0
6 yes
1
FBUS unit: OVR line status
(1 – FBUS "Input Buffer Overflow" error)
0
312*
(read)
7 yes
–
1
FBUS unit: HISPEED line status
0 FBUS unit: Set DAISY line status to 0
0 yes
1 FBUS unit: Set DAISY line status to 1
1 no – –
2 no – –
0 FBUS unit: Clear Reset
3 yes
1 FBUS unit: Set Reset
4 no – –
5 no – –
6 no – –
312*
(write)
7
–
no – –
0 yes
1 yes
2 yes
3 yes
4 yes
5 yes
6 yes
313*
(write)
7
–
yes
–
FBUS unit: Received/Transmitted bytes counters loading.
Loading order:
1) Transmit counter lower byte;
2) Transmit counter upper byte;
3) Receive counter lower byte;
4) Receive counter upper byte