UPD75518 NEC, UPD75518 Datasheet - Page 31
UPD75518
Manufacturer Part Number
UPD75518
Description
4 BIT SINGLE-CHIP MICROCOMPUTER
Manufacturer
NEC
Datasheet
1.UPD75518.pdf
(180 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD75518GF-152
Manufacturer:
NEC
Quantity:
40
Company:
Part Number:
UPD75518GF-169
Manufacturer:
ST
Quantity:
103
Company:
Part Number:
UPD75518GF-245-3B9
Manufacturer:
NEC
Quantity:
275
Company:
Part Number:
UPD75518GF-347
Manufacturer:
CORERIVER
Quantity:
930
Company:
Part Number:
UPD75518QF
Manufacturer:
ROHM
Quantity:
11 970
- Current page: 31 of 180
- Download datasheet (2Mb)
Address
3.4 GENERAL REGISTERS: 8
provided, with each bank consisting of eight 4-bit registers (B, C, D, E, H, L, X, A).
for 8-bit manipulation. DL also makes a register pair as well as DE and HL; these three register pairs can be
used as data pointers.
as a register.
000H
001H
002H
003H
004H
005H
006H
007H
008H
00FH
010H
017H
018H
01FH
The general registers are mapped to particular addresses in data memory. Four banks of registers are
The register bank (RB) to be enabled at the time of instruction execution is determined by
RB = RBE•RBS: (RBS = 0 to 3)
Each general register allows 4-bit manipulation. In addition, BC, DE, HL, or XA serves as a register pair
A general register area can be addressed and accessed as normal RAM, regardless of whether it is used
3
Fig. 3-4 General Register Format
Same as bank 0
Same as bank 0
Same as bank 0
A register
H register
D register
C register
B register
X register
L register
E register
Data memory
0
4 BITS
Register bank 0
Register bank 1
Register bank 2
Register bank 3
4 BANKS
3
3
3
3
Fig. 3-5 Register Pair Format
D
H
B
X
0
0
0
0
3
3
3
3
PD75518(A)
C
E
A
L
31
0
0
0
0
Related parts for UPD75518
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
16/8 bit single-chip microcomputer
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Dual audio power amp circuit
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Dual comparator
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
MOS type composite field effect transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
50 V/100 mA FET array incorporating 2 N-ch MOSFETs
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
6-pin small MM high-frequency double transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
6-pin small MM high-frequency double transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
6-pin small MM high-frequency double transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
6-pin small MM high-frequency double transistor
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Twin transistors equipped with different model chips(6P small MM)
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Bipolar analog integrated circuit
Manufacturer:
NEC
Datasheet: