tc94a09f TOSHIBA Semiconductor CORPORATION, tc94a09f Datasheet - Page 6

• Manufacturer Part Number: tc94a09f
• Description: Single-chip Cd Processor With Built-in Controller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Number
21~24
26~28
Pin
25
29
33
34
35
36
37
89
P2-1/HSOin
P3-1/ADin1
P3-3/ADin3
P1-0~P1-3
IN2/ (VPP)
IN1/BCKin
/EMPHin
/LRCKin
/DATAin
Symbol
/ADin4
/BUZR
P3-0
P4-0
P2-0
P2-2
P2-3
~
/AD analog voltage
/AD analog voltage
General-purpose
/1-bit DAC input
/1-bit DAC input
/buzzer output
(VPP input)
Pin Name
I/O port 1
I/O port 3
I/O port 3
I/O port 4
I/O port 2
input port
input
input
4-bit CMOS I/O port.
Input/output can be set for each bit by program.
The pins can be set to be pulled-up or
pulled-down by program. Thus, they can be
used as key input pins. When the pins are set
to I/O port input, Clock Stop mode and Wait
mode can be released, according to the change
in input to the pins.
5-bit CMOS I/O port.
Input/output can be set for each bit by program.
P3-1 and P4-0 pins are also used as built-in
6-bit 4-channel AD converter analog input pins.
The built-in AD converter uses successive
approximation. The conversion time is 6
instruction cycles (280 ms) when the 75 kHz
crystal oscillator is used; 198 ms when the 4.5
MHz crystal oscillator is used; 180 ms when the
16.9344 MHz crystal oscillator is used. AD
analog input can be set for each pin by
program. The internal power supply (MV
used as the reference voltage.
The P4-0 pin is also used as the buzzer output
pin.
One of four frequencies: 0.75, 1, 1.5, and 3
kHz, can be selected for buzzer output. The
buzzer is output at the selected frequency at 1
Hz intervals in one of four modes: Continuous,
single-shot, 10 Hz intermittent, and 10 Hz
intermittent at 1 Hz interval.
Settings for the AD converter and buzzer, and
their control can be performed by program.
I/O port 2 is a 4-bit CMOS I/O port.
IN1 and IN2 are a 2-bit general-purpose input
port.
Input/output can be set for each bit of I/O port 2
by program.
I/O port 2 and the IN1 pin can be switched to
1-bit DAC input pins by the CD command to
support shock-proofing functions. In this case,
the I/O port must be set to input.
With the OTP version, the IN2 pin is also used
as the program power supply pin.
Function and Operation
6
DD
) is
MV
Input instruction
DD
MV
R
MV
IN1
DD
DD
Remarks
TC94A09F
To AD converter
2001-10-15
MV
MV
MV
MV
DD
DD
DD
DD