IBM EM78M611E Specification page 16

EM78M611E
Universal Serial Bus Series Microcontroller
R3 [2] Zero flag. It will be set to 1 when the result of an arithmetic or logic operation is
R3 [3] Power down flag. It will be set to 1 during Power-on phase or by "WDTC"
R3 [4] Time-out flag. It will be set to 1 during Power-on phase or by "WDTC"
The various states of Power down flag and Time-out flag at different conditions are
shown below:
T
1
1
0
1
1
*P: Previous status before WDT reset
R3 [5-7] Page selection bits. These three bits are used to select the program memory
PS2
0
0
0
0
1
1
12 • • • •
zero.
command and cleared when the MCU enters into Power down mode. It remains
in its previous state after a Watchdog Reset.
0: Power down
1: Power-on
command. It is reset to 0 by WDT time-out.
0: Watchdog timer overflow occurs
1: No Watchdog timer overflow
P
1 Power-on reset
1 WDTC instruction
*P WDT time-out
0 Power down mode
0 Wake up caused by port change during Power down mode
page.
PS1 PS0
0 0
0 1
1 0
1 1
0 0
0 1
Condition
Program Memory Page [Address]
Page 0 [0000-03FF]
Page 1 [0400-07FF]
Page 2 [0800-0BFF]
Page 3 [0C00-0FFF]
Page 4 [1000-13FF]
Page 5 [1400-17FF]
Product Specification (V1.1) 11.22.2006
(This specification is subject to change without further notice)