sh6612a SinoWealth Micro-Electronics Corp. Ltd, sh6612a Datasheet - Page 15

• Manufacturer Part Number: sh6612a
• Description: 2k 4-bit Microcontroller With Lcd Driver
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

11. Option
Bonding Option
System Register 0DH (Bonding option)
Up to 4 different bonding options are possible for the user's needs. The chip's program has 4 different program flows that
will vary depending on which bonding option is used. The readable contents of B1 and B0 will differ depending on bonding.
12. HALT and STOP mode
After the execution of HALT instruction, SH6612A will enter halt mode.
In halt mode, CPU will stop operating. But peripheral circuit (Timer, Alarm and LCD) will keep operating.
After the execution of STOP instruction, SH6612A will enter stop mode.
In stop mode, the whole chip (including oscillator) will stop operating.
In HALT mode, SH6612A can be waked up if any interrupt occurs.
In STOP mode, SH6612A can be waked up if port interrupt occurs or external interrupt occurs.
$0DH
Bit 3
X
X
X
X
-
Bit 2
X
X
X
X
-
GND
GND
Bit 1
B1
1
0
1
0
B1 = 1 B0 = 0
B1
B1
B1 = 0 B0 = 0
Bit 0
B0
0
0
1
1
R/W
V
V
R
B0
B0
DD
DD
SH6612A Bonding Option
Bit0: Bonding option 0, internal weak drive
Bit1: Bonding option 1, internal weak drive
B1 bond to GND
B0 bond to V
B1 bond to GND and B0 bond to V
PCB
PCB
15/24
DD
GND
GND
Remarks
B1
B1
B1 = 0 B0 = 1
B1 = 1 B0 = 1
DD
V
V
B0
B0
DD
DD
SH6612A
Power-on
Pull low
Pull high
Yes
Ver 0.3