UPD78F9221CS-CAC-A Renesas Electronics America, UPD78F9221CS-CAC-A Datasheet - Page 33

• Manufacturer Part Number: UPD78F9221CS-CAC-A
• Description: MCU 8BIT 2KB FLASH 20PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9221CS-CAC-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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3.1.2 Internal data memory space
3.1.3 Special function register (SFR) area
Table 3-3).
3.1.4 Data memory addressing
possible. The area (FE80H to FEFFH or FE00H to FEFFH) which contains a data memory and the special function
register area (SFR) can be accessed using a unique addressing mode in accordance with each function. Figures 3-4
to 3-6 illustrate the data memory addressing.
PD78F9224.
128-byte internal high-speed RAM is provided in the
The internal high-speed RAM can also be used as a stack memory.
Special function registers (SFRs) of on-chip peripheral hardware are allocated to the area of FF00H to FFFFH (see
The 78K0S/KA1+ is provided with a wide range of addressing modes to make memory manipulation as efficient as
F F F F H
F F 2 0 H
F F 1 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
0 7 F F H
0 0 0 0 H
Special function registers (SFR)
Internal high-speed RAM
Use prohibited
Flash memory
2,048
128
256
Figure 3-4. Data Memory Addressing ( PD78F9221)
8 bits
8 bits
8 bits
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U16898EJ6V0UD
SFR addressing
PD78F9221, and 256-byte in the
Short direct addressing
Direct addressing
Register indirect addressing
Based addressing
PD78F9222 and
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