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Teilenummer | EM78P173N |
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Beschreibung | 8-Bit Microcontroller | |
Hersteller | ELAN Microelectronics | |
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Gesamt 30 Seiten EM78P173N
8-Bit Microcontroller
with OTP ROM
Product
Specification
DOC. VERSION 1.1
ELAN MICROELECTRONICS CORP.
July 2011
EM78P173N
8-Bit Microcontroller with OTP ROM
3 Pin Assignment
(1) 14-Pin DIP/SOP
Figure 3-1 14-pin EM78P173N
(2) 10-Pin MSOP
Figure 3-2 10-pin EM78P173N
2 • Product Specification (V1.1) 07.08.2011
(This specification is subject to change without further notice)
6 Page EM78P173N
8-Bit Microcontroller with OTP ROM
6.1.4 R3 (Status Register)
Bit 7
RST
Bit 6
GP1
Bit 5
GP0
Bit 4
T
Bit 3
P
Bit 2
Z
Bit 1
DC
Bit 0
C
Bit 7 (RST): Bit for reset type
0 : Set to 0 if the device wakes up from other reset type
1 : Set to 1 if the device wakes up from sleep mode on a pin change,
external interrupt or low voltage detector interrupt.
Bits 6 ~ 5 (GP1 ~ GP0): General-purpose read/write bits
Bit 4 (T): Time-out bit
Set to “1” with the "SLEP" and "WDTC" commands, or during power up;
and reset to “0” by WDT time-out.
Bit 3 (P): Power down bit
Set to “1” during power on or by a "WDTC" command; and reset to “0” by
a "SLEP" command.
Bit 2 (Z): Zero flag
Set to "1" if the result of an arithmetic or logic operation is zero.
Bit 1 (DC): Auxiliary carry flag
Bit 0 (C): Carry flag
6.1.5 R4 (RAM Select Register)
Bit 7: General-purpose read/write bits
Bit 6: Used to select Banks 0~1
See the Data Memory Configuration in Figure 6-2.
6.1.6 R5 ~ R6 (Port 5 ~ Port 6)
R5 and R6 are I/O registers.
Only the lower 4 bits of R5 are available.
The upper 4 bits of R5 can be R/W.
8 • Product Specification (V1.1) 07.08.2011
(This specification is subject to change without further notice)
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ EM78P173N Schematic.PDF ] |
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