参数资料
型号: UPD78F9222MC-5A4-A
厂商: Renesas Electronics America
文件页数: 59/125页
文件大小: 0K
描述: MCU 8BIT 4KB FLASH 20PIN
标准包装: 400
系列: 78K0S/Kx1+
核心处理器: 78K0S
芯体尺寸: 8-位
速度: 10MHz
连通性: LIN,UART/USART
外围设备: LVD,POR,PWM,WDT
输入/输出数: 15
程序存储器容量: 4KB(4K x 8)
程序存储器类型: 闪存
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-LSSOP(0.240",6.10mm 宽)
包装: 托盘
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U16898EJ6V0UD
37
Figure 3-12. General-Purpose Register Configuration (2/2)
(b) Absolute names
R0
15
0
7
0
16-bit processing
8-bit processing
RP3
RP2
RP1
RP0
R1
R2
R3
R4
R5
R6
R7
3.2.3 Special function registers (SFRs)
Unlike the general-purpose registers, each special function register has a special function.
The special function registers are allocated to the 256-byte area FF00H to FFFFH.
The special function registers can be manipulated, like the general-purpose registers, with operation, transfer, and
bit manipulation instructions. Manipulatable bit units (1, 8, and 16) differ depending on the special function register
type.
Each manipulation bit unit can be specified as follows.
1-bit manipulation
Describes a symbol reserved by the assembler for the 1-bit manipulation instruction operand (sfr.bit).
This
manipulation can also be specified with the address and bit.
8-bit manipulation
Describes a symbol reserved by the assembler for the 8-bit manipulation instruction operand (sfr).
This
manipulation can also be specified with an address.
16-bit manipulation
Describes a symbol reserved by the assembler for the 16-bit manipulation instruction operand. When specifying
an address, describe an even address.
Table 3-3 lists the special function registers. The meanings of the symbols in this table are as follows:
Symbol
Indicates the addresses of the implemented special function registers. It is defined as a reserved word in the
RA78K0S, and is defined as an sfr variable using the #pragma sfr directive in the CC78K0S. Therefore, these
symbols can be used as instruction operands if an assembler or integrated debugger is used.
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