922
Chapter 20
Port Functions
User’s Manual U16580EE3V1UD00
(d) Port emergency shut off control register 6 (PESC6)
The PESC6 register is an 8-bit register that controls the emergency shut off behaviour of output
buffers of ports P61 to P66.
Writing to the PESC6 register is only possible in a specific sequence, where a write access to the
command register (PRCMD) must be made before a write access to the PESC6 register is
accepted. A read operation in between the two write operations is allowed, i.e. read-modify-write is
possible on register PESC6. For details refer to
.
This register can be read or written in 8-bit or 1-bit units.
Reset input sets this register to 00H.
Figure 20-44:
Port Emergency Shut Off Control Register 6 (PESC6)
Caution:
State of the edge detection control bits ESO1ED1 and ESO1ED0 must not be
changed while ESO1EN is set (1). Otherwise the output shut off function may be
unintentionally triggered or a trigger event may be lost.
Remarks: 1.
The output buffers of ports P61 to P66 are forcibly disabled (high impedance output) as
long as ESO1EN and ESO1ST are set to 1.
2.
Setup of the emergency shut off function must be performed in the following sequence.
Otherwise the output shut off function may be unintentionally triggered or a trigger event
may be lost.
<1> power on (All registers are reset)
<2> PRCMD write (write protect released)
<3> clear ESO1EN bit to 0
<4> PRCMD write (write protect released)
<5> clear ESO1ST bit of ESOST6 register to 0
<6> PRCMD write (write protect released)
<7> set ESO1ED0, ESO1ED1 bits
<8> PRCMD write (write protect released)
<9> set ESO1EN bit to 1
After reset:
00H
R/W
Address:
FFFFF88CH
7
6
5
4
3
2
1
0
PESC6
0
0
0
0
ESO0EN
0
ESO0ED1
ESO0EDO0
ESO1EN
Emergency Output Shut Off Enable Control
0
Emergency shut off control by ESO1 input disabled
1
Emergency shut off control by ESO1 input enabled
ESO1ED1 ESO1ED0
Valid Edge Specification of Emergency Shut Off Input (ESO1)
0
0
Falling edge
0
1
Rising edge
1
0
Low level
1
1
High level
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...
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