Zilog Z8F0411 - Manual (Page 78)

MDS General-Purpose Board Development Kit
User Manual
UM016905-1207 Appendix—MDS-PM Board Pin Maps
67
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Not used PA3_CTS0
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Not used PJ3
Wireless (RF) Module Signals
Enabled by jumper on J2 pins 11, 12, or by U2 pin D5. Uses COM1.
When enabled, disables RS232-1, RS485, and IrDA.
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RF_TXD—PA5_TXD0
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RF_RXD—PA4_RXD0
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RF_CTS0—PA3_CTS0 (Input)
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RF_RTS0—PJ3 (Software Output)
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RF_RESET—System Reset
GPS Module Signals
Enabled by jumper on J2 pins 7, 8, or by U2 pin D0. Uses COM2. When
enabled, disables RS232-2 and Software UART.
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GPS_TXD—PD5_TXD1
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GPS_RXD—PD4_RXD1
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GPS_PPS—PD6_CTS1 (Input)
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Not used—PD3
RS485 Port Signals
Enabled by jumper on J2 pins 3, 4, or by U2 pin D2. Uses COM1. When
enabled, disables RS232-1, IrDA, and RF.
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RS485_TXD—PA5_TXD0
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RS485_RXD—PA4_RXD0
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Not used—PA3_CTS0 (Input)
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RS485_OE—PA2_DE0