Datasheet

V850ES/JG3 APPENDIX E LIST OF CAUTIONS
R01UH0015EJ0300 Rev.3.00 Page 837 of 870
Sep 30, 2010
(4/36)
Chapter
Classification
Function Details of
Function
Cautions Page
Hard
Port 9 The P90 to P97, P99, P910, and P912 to P915 pins have hysteresis
characteristics in the input mode of the alternate-function pin, but do not have the
hysteresis characteristics in the port mode.
p. 89
P9 register To read/write bits 8 to 15 of the P9 register in 8-bit or 1-bit units, specify them as
bits 0 to 7 of the P9H register.
p. 90
PM9 register To read/write bits 8 to 15 of the PM9 register in 8-bit or 1-bit units, specify them
as bits 0 to 7 of the PM9H register.
p. 90
To read/write bits 8 to 15 of the PMC9 register in 8-bit or 1-bit units, specify them
as bits 0 to 7 of the PMC9H register.
p. 91 PMC9 register
When using the A0 to A15 pins as the alternate functions of the P90 to P915 pins,
set all 16 bits of the PMC9 register to FFFFH at once.
p. 92
PFC9 register,
PFCE9 register
When performing separate address bus output (A0 to A15), set the PMC9 register
to FFFFH for all 16 bits at once after clearing the PFC9 or PFCE9 register to
0000H.
p. 93
PFC9 register To read/write bits 8 to 15 of the PFC9 register in 8-bit or 1-bit units, specify them
as bits 0 to 7 of the PFC9H register.
p. 93
PFCE9 register To read/write bits 8 to 15 of the PFCE9 register in 8-bit or 1-bit units, specify them
as bits 0 to 7 of the PFCE9H register.
p. 93
Specification of
port 9 alternate
function
The RXDA1 and KR7 pins must not be used at the same time. When using the
RXDA1 pin, do not use the KR7 pin. When using the KR7 pin, do not use the
RXDA1 pin (it is recommended to set the PFC91 bit to 1 and clear the PFCE91 bit
to 0).
p. 95
When an output pin is pulled up at EVDD or higher, be sure to set the PF9n bit to 1. p. 96 PF9 register
To read/write bits 8 to 15 of the PF9 register in 8-bit or 1-bit units, specify them as
bits 0 to 7 of the PF9H register.
p. 96
PDL register To read/write bits 8 to 15 of the PDL register in 8-bit or 1-bit units, specify them as
bits 0 to 7 of the PDLH register.
p. 104
PMDL register To read/write bits 8 to 15 of the PMDL register in 8-bit or 1-bit units, specify them
as bits 0 to 7 of the PMDLH register.
p. 104
When the SMSEL bit of the EXIMC register = 1 (separate mode) and the BS30 to
BS00 bits of the BSC register = 0 (8-bit bus width), do not specify the AD8 to
AD15 pins.
p. 105PMCDL register
To read/write bits 8 to 15 of the PMCDL register in 8-bit or 1-bit units, specify
them as bits 0 to 7 of the PMCDLH register.
p. 105
The INTP7 pin and RXDA0 pin are alternate-function pins. When using the pin as
the RXDA0 pin, disable edge detection for the alternate-function INTP7 pin (clear
the INTF3.INTF31 bit and INTR3.INTR31 bit to 0). When using the pin as the
INTP7 pin, stop the UARTA0 reception operation (clear the UA0CTL0.UA0RXE
bit to 0).
p. 137
When using one of the P10 and P11 pins as an I/O port and the other as a D/A
output pin (ANO0, ANO1), do so in an application where the port I/O level does
not change during D/A output.
p. 137
When setting pins A0 to A15 as the alternate function, set all 16 bits of the PMC9
register to FFFFH at once.
p. 140,
141
Chapter 4
Soft
Port
functions
Using port pins
as alternate-
function pins
The RXDA1 and KR7 pins must not be used at the same time. When using the
RXDA1 pin, do not use the KR7 pin. When using the KR7 pin, do not use the
RXDA1 pin (it is recommended to set the PFC91 bit to 1 and clear the PFCE91 bit
to 0).
p. 140