参数资料
型号: 784216A
厂商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT
中文描述: 马鞍山集成电路
文件页数: 29/100页
文件大小: 564K
代理商: 784216A
Data Sheet U14121EJ2V0DS00
29
μ
PD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
www.DataSheet4U.com
6.2 CPU Registers
6.2.1 General-purpose registers
Sixteen 8-bit general-purpose registers are available. Two 8-bit registers can also be used in pairs as a 16-bit
register. Of the 16-bit registers, four can be used in combination with an 8-bit register for address expansion as 24-
bit address specification registers.
Eight banks of these register sets are available and can be selected by using software or the context switching
function.
The general-purpose registers except the V, U, T, and W registers for address expansion are mapped to the
internal RAM.
Figure 6-6. General-Purpose Register Format
Caution Registers R4, R5, R6, R7, RP2, and RP3 can be used as the X, A, C, B, AX, and BC registers,
respectively, by setting the RSS bit of the PSW to 1. However, use this function only for
recycling the program of the 78K/III Series.
A (R1)
B (R3)
R5
R7
R9
R11
D (R13)
H (R15)
V
U
T
W
VVP (RG4)
UUP (RG5)
TDE (RG6)
WHL (RG7)
X (R0)
C (R2)
R4
R6
R8
R10
E (R12)
L (R14)
AX (RP0)
BC (RP1)
RP2
RP3
VP (RP4)
UP (RP5)
DE (RP6)
HL (RP7)
Names in parentheses indicate absolute names.
8 banks
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相关代理商/技术参数
参数描述
784216AY 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784217A 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784217AY 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784218A 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784218AY 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT