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Motorola MBX Series - Page 90

Motorola MBX Series
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6-20 Computer Group Literature Center Web Site
Jumpers, Connectors, and LEDs
6
10 L1TSYNCb L1TCLKa
(B2_T2_C3)
D10 D11
11 L1RSYNCb L1RCLKa
(B1_T1_C1)
D12 D13
12 +5V +3.3V D14 D15
13 LD1 L1RXDa D16 D17
14 LD2 L1TXDa D18 D19
15 LCD_AC/OE L1RXDb D20 D21
16 L1TSYNCa L1TXDb D22 D23
17 L1RSYNCa L1ST4 D24 D25
18 +12V L1ST3 D26 D27
19 SMC1RXD LD5 D28 D29
20 SMC1TXD LD6 D30 D31
21 SMC1SYN LD7 A0 A1
22 +5V LD8 A2 A3
23 SMC2RXD/
L1CLKOa
+3.3V A4 A5
24 SMC2TXD/
L1CLKOb
SCC2TXD A6 A7
25 SMC2SYN SCC2RXD A8 A9
26 GND SCC2RTS A10 A11
27 SPICLK SCC2CTS A12 A13
28 SPIMOSI SCC2DCD A14 A15
29 SPIMISO SIZ0 A16 A17
30 SPISEL SIZ1 A18 A19
31 I2CSCL GND A20 A21
32 I2CSDA BI# A22 A23
Table 6-11. 821/COMM Expansion Connector Pin Assignments
Pin Row A Row B Row C Row D

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