939
Chapter 20
Port Functions
User’s Manual U16580EE3V1UD00
20.3.12 Port
AL
Port AL is a 16-bit I/O port that can be set to input or output mode in 1-bit units. When the higher 8 bits
of port AL are used as port ALH (PALH) and the lower 8 bits as port ALL (PALL), port AL becomes two
8-bit ports that can be set in the input or output mode in 1-bit units.
(1)
Functions
•
Input/output data can be specified in 1-bit units by using the port register AL (PAL).
•
Input or output mode can be set in 1-bit units by using the port mode register AL (PMAL).
•
Port mode or control mode (for alternate function) can be specified in 1-bit units by using the
port mode control register AL (PMCAL).
Table 20-15:
Alternate Function Pins and Port Types of Port AL
Note:
Alternate function not available on
μ
PD70F3447.
Caution:
On the
μ
PD70F31187, in single-chip mode 1 or in ROM-less mode, this port has exter-
nal address bus function only. Reprogramming of port AL to port mode is not possi-
ble in these modes. Reading and writing of the port register PAL and port mode
register PMAL is possible but has no effect. Reading of the port mode control regis-
ter PMCAL is possible and the result is always FFFFH. Writing of the port mode con-
trol register PMCAL is not possible.
Port
Alternate Function
Remark
Port Type
Port AL
PAL0
to
PAL15
A0 to A15
Note
External address bus
Note
1
Summary of Contents for V850E/PH2
Page 6: ...6 Preface User s Manual U16580EE3V1UD00...
Page 16: ...16 User s Manual U16580EE3V1UD00...
Page 28: ...28 User s Manual U16580EE3V1UD00...
Page 32: ...32 User s Manual U16580EE3V1UD00...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO...
Page 192: ...192 Chapter 5 Memory Access Control Function PD70F3187 only User s Manual U16580EE3V1UD00 MEMO...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO...
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