UPD78F0886GA(A)-GAM-AX NEC, UPD78F0886GA(A)-GAM-AX Datasheet - Page 17
![8BIT MCU, 60K FLASH, 3KB RAM, CAN](/photos/19/0/190032/ge48lqfp05-40_sml.jpg)
UPD78F0886GA(A)-GAM-AX
Manufacturer Part Number
UPD78F0886GA(A)-GAM-AX
Description
8BIT MCU, 60K FLASH, 3KB RAM, CAN
Manufacturer
NEC
Datasheet
1.UPD78F0886GAA-GAM-AX.pdf
(129 pages)
Specifications of UPD78F0886GA(A)-GAM-AX
Controller Family/series
UPD78F
No. Of I/o's
41
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
8
No. Of Pwm Channels
6
Digital Ic Case Style
LQFP
Core Size
8bit
Program Memory Size
60KB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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2.2 General-Purpose Registers
registers consist of 4 banks, each bank consisting of eight 8-bit registers (X, A, C, B, E, D, L and H).
bit register (AX, BC, DE and HL).
and HL) and absolute names (R0 to R7 and RP0 to RP3).
of the 4-register bank configuration, an efficient program can be created by switching between a register for normal
processing and a register for processing upon interrupt generation for each bank.
Bank Name
General-purpose registers are mapped at particular addresses (FEE0H to FEFFH) of the data memory. These
In addition that each register can be used as an 8-bit register, two 8-bit registers in pairs can be used as a 16-
General-purpose registers can be described in terms of functional names (X, A, C, B, E, D, L, H, AX, BC, DE
Register banks to be used for instruction execution are set with the CPU control instruction (SEL RBn). Because
BANK0
BANK1
Table 2-1. General-Purpose Register Absolute Address Correspondence Table
Functional
Name
H
D
C
H
D
C
L
E
B
A
X
L
E
B
A
X
Register
Absolute
Name
R7
R6
R5
R4
R3
R2
R1
R0
R7
R6
R5
R4
R3
R2
R1
R0
Absolute Address
User's Manual U12326EJ4V0UM
FEFDH
FEFCH
FEFFH
FEFEH
FEFBH
FEFAH
FEF9H
FEF8H
FEF7H
FEF6H
FEF5H
FEF4H
FEF3H
FEF2H
FEF1H
FEF0H
CHAPTER 2 REGISTERS
Bank Name
BANK2
BANK3
Functional
Name
H
D
E
B
C
A
X
H
D
E
B
C
A
X
L
L
Register
Absolute
Name
R7
R6
R5
R4
R3
R2
R1
R0
R7
R6
R5
R4
R3
R2
R1
R0
Absolute Address
FEEEH
FEEDH
FEECH
FEEBH
FEEAH
FEEFH
FEE9H
FEE8H
FEE7H
FEE6H
FEE5H
FEE4H
FEE3H
FEE2H
FEE1H
FEE0H
17
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