UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 246
UPD78F9222MC(T)-5A4-A
Manufacturer Part Number
UPD78F9222MC(T)-5A4-A
Description
8BIT MCU, 4K FLASH, 256B RAM, 78F9222
Manufacturer
NEC
Datasheet
1.UPD78F9222MCT-5A4-A.pdf
(414 pages)
Specifications of UPD78F9222MC(T)-5A4-A
Controller Family/series
UPD78
No. Of I/o's
17
Ram Memory Size
256Byte
Cpu Speed
10MHz
No. Of Timers
4
No. Of
RoHS Compliant
Core Size
8bit
Program Memory Size
4KB
Oscillator Type
External, Internal
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Part Number:
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Note These values change as follows depending on the reset source.
246
Serial interface UART6
Reset function
Low-voltage detector
Interrupt
Flash memory
Register
RESF
LVIM
LVIS
Table 14-1. Hardware Statuses After Reset Acknowledgment (2/2)
Reset Source
WDTRF
LVIRF
Receive buffer register 6 (RXB6)
Transmit buffer register 6 (TXB6)
Asynchronous serial interface operation mode register 6 (ASIM6)
Asynchronous serial interface reception error status register 6
(ASIS6)
Asynchronous serial interface transmission error status register 6
(ASIF6)
Clock select register 6 (CKSR6)
Baud rate generator control register 6 (BRGC6)
Asynchronous serial interface control register 6 (ASICL6)
Input select control register (ISC)
Reset control flag register (RESF)
Low-voltage detection register (LVIM)
Low-voltage detection level select register (LVIS)
Request flag registers (IF0, IF1)
Mask flag registers (MK0, MK1)
External interrupt mode registers (INTM0, INTM1)
Flash protect command register (PFCMD)
Flash status register (PFS)
Flash programming mode control register (FLPMC)
Flash programming command register (FLCMD)
Flash address pointer L (FLAPL)
Flash address pointer H (FLAPH)
Flash address pointer H compare register (FLAPHC)
Flash address pointer L compare register (FLAPLC)
Flash write buffer register (FLW)
Cleared (0)
Cleared (00H)
RESET Input
Hardware
CHAPTER 14 RESET FUNCTION
User’s Manual U16898EJ5V0UD
Cleared (0)
Cleared (00H)
Reset by POC
Set (1)
Held
Cleared (00H)
Reset by WDT
Held
Set (1)
Held
Reset by LVI
FFH
FFH
01H
00H
00H
00H
FFH
16H
00H
00H
00H
00H
00H
FFH
00H
Undefined
00H
Undefined
00H
Undefined
00H
00H
00H
Status After Reset
Note
Note
Note
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