UPD78F9212CS-CAB-A Renesas Electronics America, UPD78F9212CS-CAB-A Datasheet - Page 49

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UPD78F9212CS-CAB-A

Manufacturer Part Number
UPD78F9212CS-CAB-A
Description
MCU 8BIT 4KB FLASH 16PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet

Specifications of UPD78F9212CS-CAB-A

Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
13
Program Memory Size
4KB (4K 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
-
Connectivity
-
3.3 Instruction Address Addressing
incremented (+1 for each byte) automatically according to the number of bytes of an instruction to be fetched each
time another instruction is executed.
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
An instruction address is determined by the program counter (PC) contents. The PC contents are normally
[Function]
[Illustration]
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.
PC
15
15
15
When S = 0,
When S = 1,
indicates that all bits are “0”.
indicates that all bits are “1”.
When a branch instruction is executed, the branch destination address
CHAPTER 3 CPU ARCHITECTURE
8
User’s Manual U16994EJ6V0UD
PC
+
S
7
6
jdisp8
0
0
0
... PC is the start address of
the next instruction of
a BR instruction.
47

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