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Garmin gns 430 Manuale Utente

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Page B-18
400 SERIES MAINTENANCE MANUAL
Rev. C 
P/N 190-00140-05
B.11
DISPLAY MODULE CONNECTORS
B.11.1 J22
See LCD Flex description (J12).
B.12
DATA BASE CARD CONNECTORS
J20 and J21 are the Data Base Card Connectors.
B.13
MAP BOARD CONNECTORS
B.13.1 P16
Table B-22. P16 Descriptions
Pin Name
Pin #
I/O
DESCRIPTION
CS_MAPN
1
O
Chip Select Map Not. Output pulses low typically for 240 ns when
map is accessed.
RDN
2
O
Read Not.  Output pulses low for typical times of 90, 150,  and 210
ns, depending on wait states.
WRN
3
O
Write Not. Output pulses low for typical times of 60, 120, and 180 ns,
depending on wait states.
CCSR0N_MCS0N
..
CCSR3N_MCS3N
4..7
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.
SPARE
8, 10, 54
RESETN
9
O
Reset Not output.  Low when resetting.
D00 to D15
11..26
B1
Data I/O.
A01..A13
27..39
O
Address 01.. 13 output.
CMA14..CMA23
40..49
O
Card and Map Address output.  Used for both addressing map and
card data.
CCSL0N_MA24..
CCSL3N_MA27
50..53
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.
12V_REG
55
O
12 V dc +/- 5% output.
VCC
56
O
GND
57
O
Ground.
M_CFG3..M_CFG
0
58..61
I
Map Configuration Input 3..0.
WR_TESTN
62
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).
SPARE
63..66
HSBUS_A,
HSBUS_B
67, 68
I/O
Not used.
UXLA01
69
O
Uart, Xilinx, LCD Address 1.
HSBUS_RESETN
70
O
Not used.