参数资料
型号: UPD78F9510GR-JJG-A
厂商: Renesas Electronics America
文件页数: 120/175页
文件大小: 0K
描述: MCU 8BIT SGL CHIP 16PIN
标准包装: 400
系列: 78K0S/Kx1+
核心处理器: 78K0S
芯体尺寸: 8-位
速度: 10MHz
外围设备: LVD,POR,PWM,WDT
输入/输出数: 13
程序存储器容量: 1KB(1K x 8)
程序存储器类型: 闪存
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 16-SSOP(0.173",4.40mm 宽)
包装: 托盘
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U16994EJ6V0UD
47
3.3 Instruction Address Addressing
An instruction address is determined by the program counter (PC) contents.
The PC contents are normally
incremented (+1 for each byte) automatically according to the number of bytes of an instruction to be fetched each
time another instruction is executed.
When a branch instruction is executed, the branch destination address
information is set to the PC to branch by the following addressing (for details of each instruction, refer to 78K/0S
Series Instructions User’s Manual (U11047E)).
3.3.1 Relative addressing
[Function]
The value obtained by adding 8-bit immediate data (displacement value: jdisp8) of an instruction code to the start
address of the following instruction is transferred to the program counter (PC) to branch. The displacement
value is treated as signed two’s complement data (–128 to +127) and bit 7 becomes the sign bit. In other words,
the range of branch in relative addressing is between –128 and +127 of the start address of the following
instruction.
This function is carried out when the BR $addr16 instruction or a conditional branch instruction is executed.
[Illustration]
15
0
PC
15
0
S
15
0
PC
+
87
6
α
jdisp8
When S = 0,
α indicates that all bits are “0”.
... PC is the start address of
the next instruction of
a BR instruction.
When S = 1,
α indicates that all bits are “1”.
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