upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 37

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

3.2.2 General-purpose registers
(AX, BC, DE, and HL).
names (R0 to R7 and RP0 to RP3).
A general-purpose register consists of eight 8-bit registers (X, A, C, B, E, D, L, and H).
In addition each register being used as an 8-bit register, two 8-bit registers in pairs can be used as a 16-bit register
Registers can be described in terms of function names (X, A, C, B, E, D, L, H, AX, BC, DE, and HL) and absolute
15
15
Figure 3-12. General-Purpose Register Configuration
16-bit processing
16-bit processing
RP3
RP2
RP1
RP0
HL
DE
BC
AX
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U16994EJ3V0UD
(b) Absolute names
(a) Function names
0
0
7
7
8-bit processing
8-bit processing
R7
R6
R5
R4
R3
R2
R1
R0
H
D
E
B
C
A
X
L
0
0
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