TMP93xy20FG Toshiba, TMP93xy20FG Datasheet - Page 21

• Manufacturer Part Number: TMP93xy20FG
• Manufacturer: Toshiba

Specifications of TMP93xy20FG

• Package: LQFP144
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): M/P
• Rom Combinations: 64
• Ram Combinations: 2
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: 1
• (s)dram Controller: -
• Adc 10-bit Channel: 8
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: 4
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: -
• Dual Clock: Y
• Number Of I/o Ports: 88
• Power Supply Voltage(v): 4.5 to 5.5

(2) Clock gear controller
select register SYSCR1<GEAR2:0> sets f
Switching f
(High-frequency clock gear changing)
register. It is necessary to continue the warm-up time until changing f
the register value.
clock-gear-changing instruction will be executed by the clock gear before executing its
gear
clock-gear-changing instruction will only be executed by the clock gear after changing
its gear ratio, input a dummy instruction (an instruction to execute a write cycle) as
follows.
(Example)
When the high-frequency clock fc is selected at SYSCR1<SYSCK> = 0, the clock gear
Clock setting example 3:
Changing gear value of the high-frequency clock
SYSCR1
To change the frequency of the clock gear, write the value to the SYSCR1<GEAR2:0>
There
Instruction to be executed by the clock gear after changing its gear ratio.
SYSCR1
change.
is
FPH
EQU
LD
LD
X: Don’t care
EQU
LD
LD
X: Don’t care
a
with the clock gear reduces the power consumption.
To
possibility
006FH
(SYSCR1), XXXX0000B
(SYSCR1), XXXX0100B
00E6H
(SYSCR1), XXXX0001B
(DUMMY), 00H
Instruction to be executed by the clock gear after changing.
ensure
93CS20-19
that
that
the
the
;
;
;
;
instruction
instruction
FPH
Changes f
Changes f
Changes f
Dummy instruction.
to either fc, fc/2, fc/4, fc/8, or fc/16.
SYS
SYS
SYS
immediately
immediately
to fc/2.
to fc/32.
to fc/4.
FPH
following
following
TMP93CS20
after writing
2004-02-10
the
the