TMP91xy20AFG Toshiba, TMP91xy20AFG Datasheet - Page 27

• Manufacturer Part Number: TMP91xy20AFG
• Manufacturer: Toshiba

Specifications of TMP91xy20AFG

• Package: LQFP144
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): M
• Rom Combinations: 8
• Ram Combinations: 8
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 1
• I2c/sio Bus Channels: 1
• (s)dram Controller: 1
• Adc 10-bit Channel: 8
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: 1
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: Y
• Number Of I/o Ports: 77
• Power Supply Voltage(v): 3.0 to 3.6

Limitation point on the use of DFM
1.
2.
3.
Examples of settings are below.
It’s prohibited to execute DFM enable/disable control in the SLOW mode (fs)
(Write to DFMCR0<ACT1:0> = “10”). You should control DFM in the NORMAL mode.
If you stop DFM operation during using DFM (DFMCR0<ACT1:0> = “10”), you shouldn’t
execute the commands that change the clock f
time. Therefore the above execution should be separated into two procedures as showing
below.
If you stop high-frequency oscillator during using DFM (DFMCR0<ACT1:0> = “10”), you
should stop DFM before you stop high-frequency oscillator.
(1) Start up/change control
High-frequency oscillator start up → High-frequency oscillator operation mode (f
→ DFM start up → DFM use mode (f
operate) → High-frequency oscillator operation mode (f
use mode (f
→ High-frequency oscillator start up → DFM start up → DFM use mode (f
(OK) Low-frequency oscillator operation mode (fs) (high-frequency oscillator stop) →
(OK)
(Error) Low-frequency oscillator operation mode (fs) (High-frequency oscillator stop)
WUP:
LUP:
LUP:
WUP:
LUP:
Low-frequency oscillator operation mode (fs) (high-frequency oscillator
DFM
LD
LD
LD
LD
LD
BIT
LD
LD
LD
BIT
LD
LD
LD
BIT
LD
LD
BIT
JR
JR
JR
BIT
JR
JR
)
(DFMCR0), C0H
(DFMCR0), 00H
(SYSCR0), 11 − − − 1 − − B
2, (SYSCR0)
NZ, WUP
(SYSCR1), − − − − 0 − − − B
(DFMCR0), 01 − 0 − − − − B
5, (DFMCR0)
NZ, LUP
(DFMCR0), 10 − 0 − − − − B
(SYSCR1), − − − − 0 − − − B
(DFMCR0), 01 − 0 − − − − B
5, (DFMCR0)
NZ, LUP
(DFMCR0), 10 − 0 − − − − B
(SYSCR0), 11 − − − 1 − − B
2, (SYSCR0)
NZ, WUP
(DFMCR0), 01 − 0 − − − − B
5, (DFMCR0)
NZ, LUP
(DFMCR0), 10-0 − − − − B
(SYSCR1), − − − − 0 − − − B
91C820A-25
DFM
)
DFM
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
Change the clock f
DFM stop.
High-frequency oscillator start-up/warm-up start.
Change the system clock f
DFM start-up/lockup start.
Change the system clock.
Change the system clock fs to f
DFM start-up/lockup start.
Change the system clock f
High-frequency oscillator start-up/warm-up start.
DFM start-up/lockup start.
Change the internal clock f
Change the system clock f
Check for the flag of lockup end.
Check for the flag of lockup end.
Check for the flag of lockup end.
Check for the flag of lockup end.
Check for the flag of lockup end.
to f
OSCH
OSCH
and stop the DFM at the same
DFM
) → DFM start up → DFM
to f
S
OSCH
S
OSCH
OSCH
to f
to f
OSCH
OSCH
DFM
.
to f
to f
TMP91C820A
DFM
DFM
.
2008-02-20
.
DFM
.
.
.
)
OSCH
)