7 HEADERS AND JUMPERS
7.1System and I / O Headers
The RMB-167 board has three headers, two of which are compatible with those of the RMB-166. The two RMB-166 headers, the input output port header JP2 and the system header JP1, are similar to the headers JP6 and JP7 of the RMB-167. In addition, the RMB-167 has JP8, the Extra Input/Output header XIO. Ports 2, 3, and 5 are available on JP7. JP6 contains the address, data and control busses. JP8 contains the additional ports and signals of the SAB-C167 microcontroller. Individual signals of these jumpers are listed below. The tables reflect the physical orientation of the headers and the enumeration of their individual posts. Pin 1 is identified as the post with the square pad on the circuit board.
JP6 - System Header
Signal
RMB- RMB-
166167
(JP1) (JP6)
Ground Ground D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 RD#
ALE
RSTIN#
RSTOUT#
NMI#
Pins
78
910
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
3132
3334
3536
3738
3940
4142
4344
4546
Signal
RMB- RMB-
166167
(JP1) (JP6)
VCC (+5V) VCC (+5V)
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
WR# WR# / WRL#
BHE#
not | A18 |
used | |
not | A19 |
used | |
not | A20 |
used | |
