tc94a09f TOSHIBA Semiconductor CORPORATION, tc94a09f Datasheet - Page 10

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

Number
Pin
77
80
78
79
81
82
83
84
85
86
87
90
Symbol
XV
DV
DV
DV
XV
DV
DV
RST
XO
RO
LO
XI
SS
DD
RR
DD
SR
RL
SL
CD processor control
CD processor crystal
oscillator pins
input/output
Reset input
Pin Name
Power supply pins for CD crystal oscillator.
To control the CD processor power supply and
the controller power supply individually, connect
the MV
lines used in common for the V
pins.
CD crystal oscillator input/output pins.
Connect a 16.9344 MHz crystal oscillator. The
clock is used as the CD system clock and
controller system clock.
After system reset, this clock is supplied as the
controller system clock and starts the CPU.
The crystal oscillator can be halted by program.
If the 4.5 MHz or 75 kHz oscillator is selected
as the controller system clock, the oscillator is
halted by program when the CD processor is
off.
(Note) When switching the controller system
R-channel DA converter block ground pin
R-channel data forward rotation output pin
R-channel reference voltage pin
DA converter block power supply pin
L-channel reference voltage pin
L-channel data forward rotation output pin
L-channel DA converter block ground pin
Device system reset signal input pin
While the RST is at Low level, reset is
applied. When the RST is at High level, the
CD block is in operation, and the controller
program starts from address 0.
Normally, when 2.7 V or higher voltage is
supplied to the MV
reset is applied (power-on reset). Fix the pin to
High level.
DD
clock from the controller oscillator to the
CD crystal oscillator, make sure that the
CD crystal oscillator is in stable state.
and MV
Function and Operation
10
SS
DD
pins to the power supply
when at 0 V, system
DD
and V
SS
DV
DV
RO/LO
XO
RR
SL
XI
/DV
/DV
SR
RL
Remarks
DV
TC94A09F
¾
R
R
2001-10-15
XV
DD
DV
fXT1
out1
DD
XV
DD
V
MV
SS
SS
DD