NEC 78K0/KB1+, Preliminary User'S Manual

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CHAPTER 3 CPU ARCHITECTURE
Preliminary User’s Manual U16846EJ1V0UD
51
Table 3-5. Special Function Register List (3/3)
Manipulatable Bit Unit Address Special Function Register (SFR) Name Symbol R/W
1 Bit 8 Bits 16 Bits
After
Reset
FFBCH Capture/compare control register 00 CRC00 R/W
√ √ −
00H
FFBDH 16-bit timer output control register 00 TOC00 R/W
√ √ −
00H
FFBEH Low-voltage detection register LVIM R/W
√ √ −
00H
FFBFH Low-voltage detection level selection register LVIS R/W
− √ −
00H
FFC0H Flash protect command register PFCMD W
− √ −
Undefined
FFC2H Flash status register PFS R/W
√ √ −
00H
FFC4H Flash programming mode control register FLPMC R/W
√ √ −
0XH
Note 1
FFE0H Interrupt request flag register 0L IF0 IF0L R/W
√ √ √
00H
FFE1H Interrupt request flag register 0H IF0H R/W
√ √
00H
FFE2H Interrupt request flag register 1L IF1L R/W
√ √ −
00H
FFE4H Interrupt mask flag register 0L MK0 MK0L R/W
√ √ √
FFH
FFE5H Interrupt mask flag register 0H MK0H R/W
√ √
FFH
FFE6H Interrupt mask flag register 1L MK1L R/W
√ √ −
FFH
FFE8H Priority specification flag register 0L PR0 PR0L R/W
√ √ √
FFH
FFE9H Priority specification flag register 0H PR0H R/W
√ √
FFH
FFEAH Priority specification flag register 1L PR1L R/W
√ √ −
FFH
FFF0H Internal memory size switching register
Note 2
IMS R/W
− √ −
CFH
FFFBH Processor clock control register PCC R/W
√ √ −
00H
FFFDH System wait control register VSWC R/W
√ √ −
00H
Note 3
Notes 1. Differs depending on the operation mode.
•
User mode: 08H
•
On-board mode: 0CH
2. The default value of IMS is fixed (IMS = CFH) in all products in the 78K0/KB1+ regardless of the internal
memory capacity. Therefore, set the following value to each product. In addition, set the following values
to the internal memory size switching register (IMS) when using the 78K0/KB1+ to evaluate the program
of a mask ROM version of the 78K0/KB1.
Flash Memory Version
(78K0/KB1+)
Target Mask ROM Version
(78K0/KB1)
Internal Memory Size
Switching Register (IMS)
µ
PD78F0101H
µ
PD780101 42H
µ
PD78F0102H
µ
PD780102 04H
µ
PD78F0103H
µ
PD780103 06H
3. Do not access VSWC in the current IE environment (IE-78K0-NS, IE-78K0-NS-A, and IE-78K0K1-ET).