tmp86fh46bng TOSHIBA Semiconductor CORPORATION, tmp86fh46bng Datasheet - Page 28
tmp86fh46bng
Manufacturer Part Number
tmp86fh46bng
Description
8 Bit Microcontroller Tlcs-870/c Series
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP86FH46BNG.pdf
(216 pages)
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Part Number:
TMP86FH46BNG
Manufacturer:
TOSHIBA/东芝
Quantity:
20 000
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2.2
System Clock Controller
2.2.2
High-frequency
Low-frequency
2.2.2.1
clock fc
clock fs
ware from the basic clock (fc or fs). The timing generator provides the following functions.
SYSCK
DV7CK
Timing Generator
The timing generator generates the various system clocks supplied to the CPU core and peripheral hard-
and machine cycle counters.
TBTCR<DV7CK>, that is shown in Figure 2-4. As reset and STOP mode started/canceled, the prescaler
and the divider are cleared to “0”.
1. Generation of main system clock
2. Generation of divider output (DVO) pulses
3. Generation of source clocks for time base timer
4. Generation of source clocks for watchdog timer
5. Generation of internal source clocks for timer/counters
6. Generation of warm-up clocks for releasing STOP mode
The timing generator consists of a 2-stage prescaler, a 21-stage divider, a main system clock generator,
An input clock to the 7th stage of the divider depends on the operating mode, SYSCR2<SYSCK> and
Configuration of timing generator
Timer counter, Serial interface, Time-base-timer, divider output, etc. (Peripheral functions)
1
2
fc/4
Main system clock generator
Figure 2-4 Configuration of Timing Generator
1
2
3
4
5 6
plexer
Multi-
A
B
S
Page 10
Y
7
fc or fs
8
9
10
11
12
13
Divider
14
Machine cycle counters
15
16
17 18 19 20 21
TMP86FH46BNG
B0
B1
A0 Y0
A1 Y1
S
Multiplexer
Warm-up
controller
Watchdog
timer
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