435
Chapter 30 I/O Ports
1.I/O Ports Functions
P04_2
P04_2
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A26 I/O pin for bit 26 of the external address bus. This function is enabled when
the external bus is enabled.
P04_1
P04_1
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A25 I/O pin for bit 25 of the external address bus. This function is enabled when
the external bus is enabled.
P04_0
P04_0
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A24 I/O pin for bit 24 of the external address bus. This function is enabled when
the external bus is enabled.
Port 05
P05_7
P05_7
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A23 I/O pin for bit 23 of the external address bus. This function is enabled when
the external bus is enabled.
P05_6
P05_6
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A22 I/O pin for bit 22 of the external address bus. This function is enabled when
the external bus is enabled.
P05_5
P05_5
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A21 I/O pin for bit 21 of the external address bus. This function is enabled when
the external bus is enabled.
P05_4
P05_4
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A20 I/O pin for bit 20 of the external address bus. This function is enabled when
the external bus is enabled.
P05_3
P05_3
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A19 I/O pin for bit 19 of the external address bus. This function is enabled when
the external bus is enabled.
P05_2
P05_2
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A18 I/O pin for bit 18 of the external address bus. This function is enabled when
the external bus is enabled.
P05_1
P05_1
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A17 I/O pin for bit 17 of the external address bus. This function is enabled when
the external bus is enabled.
P05_0
P05_0
TP04_0
General purpose I/O. This function is enabled in the single-chip mode or by
setting the corresponding PFR to ‘0’.
A16 I/O pin for bit 16 of the external address bus. This function is enabled when
the external bus is enabled.
Port 06
Pin Name I/O Signal Circuit
Type Function