TMP91xy20AFG Toshiba, TMP91xy20AFG Datasheet - Page 23

• 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

<XEN>
X1, X2 pins
<XTEN>
XT1, XT2 pins
Warm-up timer
End of warm-up timer
<SYSCK>
System clock f
SYSCR0
SYSCR1
SYSCR2
X: Don’t care, −: No change
WUP:
Example 1:
SYS
EQU
EQU
EQU
LD
SET
SET
SET
RES
Setting the clock
Changing from high frequency (fc) to low frequency (fs).
BIT
JR
Counts up by f
Enables
low frequency
00E0H
00E1H
00E2H
(SYSCR2), −X11− − − −B
6, (SYSCR0)
2, (SYSCR0)
2, (SYSCR0)
NZ, WUP
3, (SYSCR1)
7, (SYSCR0)
SYS
Clears and starts
warm-up timer
91C820A-21
fc
Counts up by fs
;
;
;
;
;
;
;
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.
End of warm-up timer
SYS
from fc to fs.
Chages f
from fc to fs
16
/fs.
fs
SYS
Disables
high frequency
TMP91C820A
2008-02-20