UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 28

• Manufacturer Part Number: UPD78F9222MC(T)-5A4-A
• Description: 8BIT MCU, 4K FLASH, 256B RAM, 78F9222
• Manufacturer: NEC

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

3.1 Memory Space
28
Remark
The 78K0S/KA1+ can access up to 64 KB of memory space. Figures 3-1 and 3-2 show the memory maps.
Data memory
space
Program memory
The option byte and protect byte are 1 byte each.
space
F F F F H
F F 0 0 H
F E F F H
F E 8 0 H
F E 7 F H
0 8 0 0 H
F 7 F F H
0 0 0 0 H
Internal high-speed RAM
Special function registers
CHAPTER 3 CPU ARCHITECTURE
Figure 3-1. Memory Map ( PD78F9221)
Use prohibited
Flash memory
2,048
128
256
(SFR)
User’s Manual U16898EJ5V0UD
8 bits
8 bits
8 bits
0 7 F F H
0 0 8 2 H
0 0 8 1 H
0 0 8 0 H
0 0 7 F H
0 0 4 0 H
0 0 3 F H
0 0 2 2 H
0 0 2 1 H
0 0 0 0 H
Protect byte area
CALLT table area
Vector table area
Option byte area
Program area
Program area