Rev. 1.20
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Rev. 1.20
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BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
*
*
W r i t e r _ V D D
I C P D A
I C P C K
W r i t e r _ V S S
T o o t h e r C i r c u i t
P A 0
P A 2
V S S
V D D
W r i t e r C o n n e c t o r
S i g n a l s
M C U P r o g r a m m i n g
P i n s
Note: * may be resistor or capacitor. The resistance of * must be greater than 1k or the capacitance
of * must be less than 1nF.
On-Chip Debug Support – OCDS
There are three EV chips named BS82BV12A-3, BS82CV16A-3 and BS82DV20A-3 which are
used to emulate the BS82B12A-3, BS82C16A-3 and BS82D20A-3 devices respectively
.
Each EV
chip device also provides an "On-Chip Debug" function to debug the corresponding MCU device
during the development process. The EV chip and the actual MCU device are almost functionally
compatible except for the "On-Chip Debug" function. Users can use the EV chip device to emulate
the real chip device behavior by connecting the OCDSDA and OCDSCK pins to the Holtek HT-
IDE development tools. The OCDSDA pin is the OCDS Data/Address input/output pin while the
OCDSCK pin is the OCDS clock input pin. When users use the EV chip for debugging, other
functions which are shared with the OCDSDA and OCDSCK pins in the actual MCU device will
have no effect in the EV chip. However, the two OCDS pins which are pin-shared with the ICP
programming pins are still used as the Flash Memory programming pins for ICP. For a more detailed
OCDS description, refer to the corresponding document named "Holtek e-Link for 8-bit MCU
OCDS User’s Guide".
Holtek e-Link Pins
EV Chip Pins
Pin Description
OCDSDA
OCDSDA
On-chip Deb�g S�ppo�t Data/Add�ess inp�t/o�tp�t
OCDSCK
OCDSCK
On-chip Deb�g S�ppo�t Clock inp�t
VDD
VDD
Powe� S�ppl�
GND
VSS
G�o�nd
Содержание BS82B12A-3
Страница 33: ...Rev 1 20 33 January 23 2015 BS82B12A 3 BS82C16A 3 BS82D20A 3 Touch Key 8 Bit Flash MCU with LED LCD Driver ...
Страница 34: ...Rev 1 20 34 January 23 2015 BS82B12A 3 BS82C16A 3 BS82D20A 3 Touch Key 8 Bit Flash MCU with LED LCD Driver ...
Страница 35: ...Rev 1 20 35 January 23 2015 BS82B12A 3 BS82C16A 3 BS82D20A 3 Touch Key 8 Bit Flash MCU with LED LCD Driver ...