參數(shù)資料
型號(hào)： UPD784215AGC
廠商： NEC Corp.
英文描述： 16-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 16位單晶片微控制器
文件頁(yè)數(shù)： 29/100頁(yè)
文件大?。?/td> 561K
代理商： UPD784215AGC
Data Sheet U14121EJ2V0DS00
29
μ
PD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
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
相關(guān)PDF資料
PDF描述
UPD784215AGF 16-BIT SINGLE-CHIP MICROCONTROLLERS
UPD784215A 16-BIT SINGLE-CHIP MICROCONTROLLERS
UPD784214A 16-BIT SINGLE-CHIP MICROCONTROLLERS
UPD784214AGC 16-BIT SINGLE-CHIP MICROCONTROLLERS
UPD784214AGF 16-BIT SINGLE-CHIP MICROCONTROLLERS
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