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Chapter 30 I/O Ports
1.I/O Ports Functions
Chapter 30 I/O Ports
1. I/O Ports Functions
For enabling the resource functions, please refer to section ........
Pin Name I/O Signal
Circuit
Type
Function
INITX INITX TC02_0 Reset input, low active
RSTX RSTX TC01_0 Reset input, low active
HSTX HSTX TC00_0 Hardware Standby input, low active
NMIX NMIX TC01_0 Non-maskable Interrupt input, low active
MD2 MD2 TC02_1 Mode Pin 2
MD1 MD1 TC02_1 Mode Pin 1
MD0 MD0 TC02_1 Mode Pin 0
X0 X0 TO00_0 Main Oscillation input
X1 X1 TO00_1 Main Oscillation output
X0A X0A TO01_0 Sub Oscillation input
X1A X1A TO01_1 Sub Oscillation output
ALARM0 ALARM0 TA02_0 ALARM comparator input channel 0
ALARM1 ALARM1 TA02_0 ALARM comparator input channel 1
EBREAKX EBREAKX TC01_0 EDSU BREAK input, low active
MONCLK MONCLK TC10_0 Clock Monitor Output
Port 00
P00_7
P00_7
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
D31
I/O pin for bit 31 of the external data bus. This function is enabled when the
external bus is enabled.
P00_6
P00_6
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
D30
I/O pin for bit 30 of the external data bus. This function is enabled when the
external bus is enabled.
P00_5
P00_5
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
D29
I/O pin for bit 29 of the external data bus. This function is enabled when the
external bus is enabled.
P00_4
P00_4
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
D28
I/O pin for bit 28 of the external data bus. This function is enabled when the
external bus is enabled.