UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 88

• Manufacturer Part Number: UPD78F0550MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0550MA-FAA-AX

• Package / Case: *
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 10MHz
• Number Of I /o: 12
• Core Processor: 78K/0
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Program Memory Size: 4KB (4K x 8)
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Peripherals: LVD, POR, PWM, WDT
• Connectivity: I²C, LIN, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

3.3 Instruction Address Addressing
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 information is set to PC and branched by
the following addressing (for details of instructions, refer to the 78K/0 Series Instructions User’s Manual (U12326E)).
3.3.1 Relative addressing
88
An instruction address is determined by contents of the program counter (PC) and is normally incremented (+1 for
[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) and branched.
displacement value is treated as signed two’s complement data ( 128 to +127) and bit 7 becomes a sign bit.
In other words, relative addressing consists of relative branching from the start address of the following
instruction to the 128 to +127 range.
This function is carried out when the BR $addr16 instruction or a conditional branch instruction is executed.
PC
When S = 0, all bits of
When S = 1, all bits of
15
15
15
are 0.
are 1.
8
PC
+
Preliminary User’s Manual U19111EJ2V1UD
CHAPTER 3 CPU ARCHITECTURE
7
S
6
jdisp8
0
0
0
...
PC indicates the start address
of the instruction after the BR instruction.
The