Appendix D List Of Cautions - NEC MuPD78F0132H User Manual

This appendix lists cautions described in this document.
"Classification (hard/soft)" in table is as follows.
Hard: Cautions for microcontroller internal/external hardware
Soft: Cautions for software such as register settings or programs
Function Details of
Function
−
Pin
connection
Pin P31
functions
Memory IMS: Internal
space memory size
switching
register
Program area
SFR area:
Special function
register
SP: Stack
pointer
Port P02, P03, P04
functions
P10, P11, P12
P31
−

APPENDIX D LIST OF CAUTIONS

Connect the AV pin to V .
SS SS
µ
In the PD78F0138HD, be sure to pull the P31 pin down after reset to prevent
malfunction.
Regardless of the internal memory capacity, the initial values of the internal
memory size switching register (IMS) and internal expansion RAM size
switching register (IXS) of all products in the 78K0/KE1+ are fixed (IMS = CFH,
IXS = 0CH). Therefore, set the value corresponding to each product as
indicated below. In addition, set the following values to the IMS and the IXS
when using the 78K0/KE1+ to evaluate the program of a mask ROM version of
the 78K0/KE1.
µ
When replacing the PD78F0132H with the
µ
from 0081H to 0083H in the
µ
When replacing the PD78F0133H with the
µ
from 0081H to 0083H in the
µ
When replacing the PD78F0134H with the
µ
from 0081H to 0083H in the
µ
When replacing the PD78F0136H with the
µ
from 0081H to 0083H in the
µ
When replacing the PD78F0138H with the
µ
from 0081H to 0083H in the
Do not access addresses to which SFRs are not assigned.
Since RESET input makes the SP contents undefined, be sure to initialize the
SP before using the stack.
When P02/SO11, P03/SI11, and P04/SCK11 are used as general-purpose
ports, do not write to serial clock selection register 11 (CSIC11).
When P10/SCK10/TxD0, P11/SI10/RxD0, and P12/SO10 are used as general-
purpose ports, do not write to serial clock selection register 10 (CSIC10).
µ
In the PD78F0138HD, be sure to pull the P31 pin down after reset to prevent
malfunction.
In the case of a 1-bit memory manipulation instruction, although a single bit is
manipulated, the port is accessed as an 8-bit unit. Therefore, on a port with a
mixture of input and output pins, the output latch contents for pins specified as
input are undefined, even for bits other than the manipulated bit.
User's Manual U16899EJ2V0UD
Cautions
µ
PD78F0138HD, note that the area
PD78F0138HD cannot be used.
µ
PD78F0138HD, note that the area
PD78F0138HD cannot be used.
µ
PD78F0138HD, note that the area
PD78F0138HD cannot be used.
µ
PD78F0138HD, note that the area
PD78F0138HD cannot be used.
µ
PD78F0138HD, note that the area
PD78F0138HD cannot be used.
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