Garmin GNC 420 Maintenance Manual page 159

B.3.7 J16
Pin Name Pin #
CS_MAPN 1
RDN 2
WRN 3
CCSR0N_MCS0 4..7
N..
CCSR3N_MCS3
N
SPARE 8, 10, 54
RESETN 9
D00 to D15 11..26
A01..A13 27..39
CMA14..CMA23 40..49
CCSL0N_MA24. 50..53
.
CCSL3N_MA27
12V_REG 55
VCC 56
GND 57
M_CFG3..M_CF 58..61
G0
WR_TESTN 62
SPARE 63..66
HSBUS_A, 67, 68
HSBUS_B
UXLA01 69
HSBUS_RESET 70
N
400 SERIES MAINTENANCE MANUAL
P/N 190-00140-05
Table B-9. J16 Descriptions
I/O
O Chip Select Map Not. Output pulses low typically for 240 ns when
map is accessed.
O Read Not. Output pulses low for typical times of 90, 150, and 210
ns, depending on wait states.
O Write Not. Output pulses low for typical times of 60, 120, and 180 ns,
depending on wait states.
O Card Chip Select Right 0..3, not and Map Chip Select 0..3. Signal
used for both card chips (only 1 should be low at a time) and selecting
map.
O Reset Not output. Low when resetting.
B1 Data I/O.
O Address 01.. 13 output.
O Card and Map Address output. Used for both addressing map and
card data.
O Card Chip Select Left 0..3 not and Map Address 24..27. Used for
chip selects of left card (only 1 of 4 should be low at a time) and
addressing map data.
O 12 V dc +/- 5% output.
O
O Ground.
I Map Configuration Input 3..0.
O Write Test Not. Output pulses low for typical times of 60, 120, and
180 ns, depending on wait states and only if the J1-76 (TEST MODE
SELECT) is low. Also see J14-46 (LFT_A22)
I/O Not used.
O Uart, Xilinx, LCD Address 1.
O Not used.
Description
Page B-9
Rev. C