tc94a09f TOSHIBA Semiconductor CORPORATION, tc94a09f Datasheet - Page 7

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

Number
39~42
Pin
30
31
32
38
88
OT20/SPCK
OT21/SPDA
OT22/COFS
OT19/ HSO
/SCK/SCL
P4-1/S12
/SI0/SI1/
Symbol
TESTM
TESTC
P4-2
SDA
P4-3
Test mode control
/CD control signal
/Serial data input
/Serial clock
input/output
input/output
/Serial data
Output port
Pin Name
I/O port 4
output
input
3-bit CMOS I/O port.
Input/output can be set for each bit by program.
These pins are also used as serial interface
(SIO) circuit input/output pins.
SIO is a serial interface supporting 2-line and
3-line methods. Starting from the MSB or LSB,
4 or 8-bit serial data are output to the SO/SDA
pin, or data on the S11 and S12 pins are input
to the device at the clock edge on the SCK/SCL
pin. As the serial operating clock (SCK/SCL),
an internal (450/225/150/75 kHz) or external
clock can be selected. Rising or falling shift can
also be selected. The clock and data output can
be N-channel open drain. These selections
facilitate controlling the LSI and
communications between the controllers.
When SIO interrupts are enabled, an interrupt is
generated as soon as execution of the SIO
completes, and the program jumps to address
4. This is effective for performing serial
communications at high speed.
All SIO inputs incorporate a Schmidt circuit.
SIO and its control can be set by program.
Input pins for controlling Test mode.
When the pins are at High level, the device is in
Test mode; at Low level, in normal operation.
Normally, set the pins to Low level or NC
(pull-down resistors are incorporated).
4-bit general-purpose output port.
After system reset, the pins are set to a
Low-level output port.
The pins can be switched to CD control output
pins by program. Setting OT19 to OT22 to 0
switches all four pins to CD control output pins.
Setting the CDIO bit to 1 enables the pins to be
switched as follows according to the segment
data contents of the S15 and S16 pins:
/ HSO
/SPCK Outputs clock for reading processor
/SPDA Outputs processor status signal.
/COFS Outputs frame clock for correction
Outputs playback speed mode.
Normal speed: High
Double speed: Low
status signal (176.4 kHz).
(7.35 kHz).
Function and Operation
7
Input instruction + SI0
R
IN2
Remarks
TC94A09F
2001-10-15
MV
MV
ON
MV
DD
DD
DD