B. Specifications
ÛZIATECH
112
J6 (Frontplane DMA Connector)
J6 is a 10-pin (dual 5-pin) vertical male header with 0.1 inch contact spacing. Three
frontplane DMA channels are available through this connector (depending on the
configuration of cuttable traces CT16, CT17, CT25, CT29 and CT39). The pin
assignments are shown in the "J6 Frontplane DMA Connector Pinout" table below. The
mating connector is a T&B Ansley #622-1000 or equivalent. Refer to Chapter 6,
"
" for more information.
J6 Frontplane DMA Connector Pinout
Pin # Signal
Type
Description
1
DRQ0/5*
In
DMA request 0 or 5
2
DRQ1/6*
In
DMA request 1 or 6
3
DAK0/5*
Out
DMA acknowledge 0 or 5
4
DAK1/6*
Out
DMA acknowledge 1 or 6
5
DRQ3/7
In
DMA request 3 or 7
6
DMAIOW*
Out
I/O write
7
DAK3/7
Out
DMA acknowledge 3 or 7
8
DMAIOR*
Out
I/O read
9
GND
----
Ground
10
TC*
Out
Terminal count
Notes:
1. Channel selection is made with cuttable traces CT16, CT17, CT25, CT29 and CT39.
2. DMAIOW* and DMAIOR* must be qualified with the respective DMA acknowledge
by the DMA I/O slave.
