73
Chapter 2
Pin Functions
User’s Manual U16580EE3V1UD00
(19) PCT4, PCT5 (Port CT) … I/O
Port CT is a 2-bit I/O port in which input or output can be set for each port pin individually.
Besides functioning as a port, in control mode, these pins operate as control signal outputs
Note
when memory is expanded externally.
The operation mode can be specified by the port CT mode control register (PMCCT) to port or
control mode for each port pin individually.
(a) Port mode
PCT4 and PCT5 can be set to input or output in 1-bit units using the port CT mode register
(PMCT).
(b) Control mode
PCT4 and PCT5 can be set to port or control mode in 1-bit units using the PMCCT register.
(i) RD (Read strobe) … 3-state output
Note
This is a strobe signal output pin that shows whether the bus cycle currently being executed is
a read cycle for the external memory or peripheral I/O extension area. In the idle state (TI), it
becomes inactive.
(ii) WR (Write strobe) … 3-state output
Note
This is a strobe signal output pin that shows whether the bus cycle currently being executed is
a write cycle for the external memory or peripheral I/O extension area.
Note:
not available on
μ
PD70F3447
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...
Page 1052: ...1052 User s Manual U16580EE3V1UD00...
Page 1053: ......