TMP86xy45UG Toshiba, TMP86xy45UG Datasheet - Page 19

• Manufacturer Part Number: TMP86xy45UG
• Manufacturer: Toshiba

Specifications of TMP86xy45UG

• Package: QFP44
• Rom Types (m=mask,p=otp,f=flash): M/P
• Rom Size: 8
• Ram Size: 256
• Driver Led: 19
• Driver Lcd: -
• Spi/sio Channels: 1
• Uart/sio Channels: -
• I2c/sio Channels: -
• High-speed Serial Output: -
• Adc 8-bit Channels: -
• Adc 10-bit Channels: 8
• Da Converter Channels: -
• Timer Counter 18-bit Channel: -
• Timer Counter 16-bit Channel: -
• Timer Counter 8-bit Channel: 2
• Motor Channels: -
• Watchdog Timer: Y
• Dual Clock: Y
• Clock Gear: -
• Number Of I/o Ports: 35
• Power Supply (v): 2.7 to 5.5

2.2 System Clock Controller
Example :Clears RAM to “00H”. (TMP86C845UG)
2.2 System Clock Controller
2.2.1 Clock Generator
The system clock controller consists of a clock generator, a timing generator, and a standby controller.
and peripheral hardware. It contains two oscillation circuits: One for the high-frequency clock and one for the
low-frequency clock. Power consumption can be reduced by switching of the standby controller to low-power
operation based on the low-frequency clock.
between the XIN/XOUT and XTIN/XTOUT pins respectively. Clock input from an external oscillator is also
possible. In this case, external clock is applied to XIN/XTIN pin with XOUT/XTOUT pin not connected.
The clock generator generates the basic clock which provides the system clocks supplied to the CPU core
The high-frequency (fc) clock and low-frequency (fs) clock can easily be obtained by connecting a resonator
SRAMCLR:
XTOUT
XOUT
XTIN
XIN
LD
LD
LD
LD
INC
DEC
JRS
High-frequency
clock oscillator
Low-frequency
clock oscillator
generator
Clock
Figure 2-2 System Colck Control
HL, 0040H
A, H
BC, 00FFH
(HL), A
HL
BC
F, SRAMCLR
fc
fs
Timing generator control register
Clock generator control
Page 8
System clocks
; Start address setup
; Initial value (00H) setup
generator
TBTCR
Timing
0036 H
0038 H
System control registers
SYSCR1
Standby controller
0039 H
SYSCR2
TMP86C845UG