EM78P510N
8-Bit Microcontrollers
Bits 6~5 (LVDS1~LVDS0): Detect Voltage Select Bits
LVDS1
LVDS0
Detect Voltage
2.4V
0
0
1
1
0
1
0
1
2.7V
3.3V
3.9V
Bit 4 (T): Time-out bit
Set to 1 by the "SLEP" and "WDTC" command, or during power up and
reset to 0 by WDT timeout.
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.
Event
T
0
0
1
1
×
P
0
1
0
1
×
Remarks
WDT wakes up from sleep mode
WDT times out (not in sleep mode)
/RESET wakes up from sleep
Power up
Low pulse on /RESET
× = don't care
Bit 2 (Z): Zero flag
Bit 1 (DC): Auxiliary carry flag
Bit 0 (C): Carry flag
6.2.5 R4 (RAM Select Register)
Bit 7 (VDB): Voltage Detector. This is a read only bit. When VDD pin voltage is lower
then Vdet (select by LVDS0~LVDS1) this bit will be cleared.
0 : low voltage is detected
1 : low voltage is not detected or LVD function is disabled
Bit 6 (BNC): Bank Control Register.
0 : allow to access only Bank 0 registers
1 : Allow to access all registers of any Bank
Bits 5~0: are used to select up to 64 registers in the indirect addressing mode.
See the configuration of the data memory. User can use BANK instruction
to change bank.
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Product Specification (V0.9) 09.12.2006
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
