HT48R063/064/065/066/0662/067
·
CTRL2 Register
¨
HT48R0662
Bit
Name
R/W
7
6
5
4
3
2
1
0
LXTEN
R/W
1
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
POR
¨
HT48R067
Bit
Name
R/W
7
6
5
4
PWMC2
R/W
0
3
2
1
0
LXTEN
R/W
1
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
POR
Others
Bit 4
Unimplemented, read as ²0²
PWMC2: I/O or PWM2 control
0: I/O
1: PWM2 output
Bit 0
LXTEN: LXT oscillator on/off control after execution of HALT instruction
0: LXT off in Sleep mode
1: LXT on in Idle mode
Wake-up Function Register - PAWK
Software COM Register - SCOMC
When the microcontroller enters the Idle/Sleep Mode,
various methods exist to wake the device up and con-
tinue with normal operation. One method is to allow a
falling edge on the I/O pins to have a wake-up function.
This register is used to select which Port A I/O pins are
used to have this wake-up function.
The pins PB0~PB3 on Port B can be used as SCOM
lines to drive an external LCD panel. To implement this
function, the SCOMC register is used to setup the cor-
rect bias voltages on these pins.
Pull-high Registers -
PAPU, PBPU, PCPU, PDPU, PEPU, PFPU
The I/O pins, if configured as inputs, can have internal
pull-high resistors connected, which eliminates the need
for external pull-high resistors. This register selects which
I/O pins are connected to internal pull-high resistors.
Rev. 1.10
24
June 9, 2009
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
