參數(shù)資料
型號(hào)： UPD784907
廠商： NEC Corp.
英文描述： 16-BIT SINGLE-CHIP MICROCONTROLLER
中文描述： 16位單片機(jī)
文件頁數(shù)： 25/98頁
文件大?。?/td> 657K
代理商： UPD784907
μ
PD784907, 784908
25
Data Sheet U11680EJ2V0DS00
A (R1)
X (R0)
B (R3)
C (R2)
R5
R4
R7
R6
R9
R8
R11
R10
D (R13)
E (R12)
H (R15)
V
U
T
W
L (R14)
AX (RP0)
BC (RP1)
RP2
RP3
VP (RP4)
UP (RP5)
DE (RP6)
HL (RP7)
VVP (RG4)
UUP (RG5)
TDE (RG6)
WHL (RG7)
The character strings enclosed in
parentheses represent absolute names.
8 banks
7.2 CPU Registers
7.2.1 General-purpose registers
A set of general-purpose registers consists of sixteen 8-bit general-purpose registers. Two 8-bit general-purpose
registers can be combined to form a 16-bit general-purpose register. Moreover, four 16-bit general-purpose registers,
when combined with an 8-bit register for address extension, can be used as 24-bit address specification registers.
Eight banks of this register set are provided. The user can switch between banks by software or the context switching
function.
General-purpose registers other than the V, U, T, and W registers used for address extension are mapped onto
internal RAM.
Figure 7-3. General-Purpose Register Format
Caution
By setting the RSS bit of PSW to 1, R4, R5, R6, R7, RP2, and RP3 can be used as the X, A, C,
B, AX, and BC registers, respectively. However, this function must be used only when using
programs for the 78K/III series.
相關(guān)PDF資料
PDF描述
UPD784907GF 16-BIT SINGLE-CHIP MICROCONTROLLER
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UPD784908GF 16-BIT SINGLE-CHIP MICROCONTROLLER
UPD784908GF-XXX-3BA 16-Bit Microcontroller
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