TMP92xy21FG Toshiba, TMP92xy21FG Datasheet - Page 26

• Manufacturer Part Number: TMP92xy21FG
• Manufacturer: Toshiba

Specifications of TMP92xy21FG

• Package: LQFP144
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): Romless
• Rom Combinations: Romless
• Ram Combinations: 16
• Architecture: 32-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: -
• (s)dram Controller: 1
• Adc 10-bit Channel: 4
• 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: 82
• Power Supply Voltage(v): 3.0 to 3.6

System clock f
<XEN>
X1, X2 pins
<XTEN>
XT1, XT2 pins
Warm-up timer
End of warm-up timer
<SYSCK>
Example 1: Setting the clock
SYSCR0
SYSCR1
SYSCR2
WUP:
X: Don’t care, −: No change
SYS
EQU
EQU
EQU
LD
SET
SET
BIT
JR
SET
RES
Changing from high-frequency (fc) to low-frequency (fs).
Counts up by f
Enables
low-frequency
(SYSCR2), 0 X 1 1 − − X X B ;
10E0H
10E1H
10E2H
6, (SYSCR0)
2, (SYSCR0)
2, (SYSCR0)
NZ, WUP
3, (SYSCR1)
7, (SYSCR0)
SYS
Clears and starts
warm-up timer
92CH21-24
Counts up by fs
fc
End of warm-up timer
;
;
;
;
;
;
Sets warm-up time to 2
Enables low-frequency oscillation.
Clears and starts warm-up timer.
Detects stopping of warm-up timer.
Changes f
Disables high-frequency oscillation.
Chages f
from fc to fs
SYS
fs
from fc to fs.
SYS
Disabiles
high-frequency
16
/fs.
TMP92CH21
2009-06-19