Zilog Z8F0411 - Manual (Page 49)

MDS General-Purpose Board Development Kit
User Manual
UM016905-1207 Appendix—MDS-PM Board Pin Maps
38
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—PD0_TXD0
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RF_RXD—PD1_RXD0
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RF_CTS0—PD3_CTS0
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RF_RTS0—PD2_RTS0
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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 COM1.
Uses COM2. When enabled, disables RS232-2 and Software UART.
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GPS_TXD—PC0_TXD1
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GPS_RXD—PC1_RXD1
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GPS_PPS—PC3_CTS1 (Input)
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Not used—PC2
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—PD0_TXD0
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RS485_RXD—PD1_RXD0
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Not used—PD3
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RS485_OE—PC5 (eZ80F91 MCU alternate function: DSR input)