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HMS81032TL Datasheet(PDF) 36 Page - Hynix Semiconductor

Part # HMS81032TL
Description  HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS
PDF  77 Pages
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Manufacturer  HYNIX [Hynix Semiconductor]
Direct Link  http://www.skhynix.com/kor/main.do
Logo HYNIX - Hynix Semiconductor

HMS81032TL Datasheet(HTML) 36 Page - Hynix Semiconductor

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HMS81004E/08E/16E/24E/32E
JUNE 2001 Ver 1.00
33
10. CLOCK GENERATOR
Clock generating circuit consists of Clock Pulse Generator
(C.P.G), Prescaler, Basic Interval Timer (B.I.T) and Watch
Dog Timer. The clock applied to the Xin pin divided by
two is used as the internal system clock.
Prescaler consist of 12-bit binary counter. The clock sup-
plied from oscillation circuit is input to prescaler(fex)
The divided output from each bit of prescaler is provided
to periphera hardwarel
Clock to peripheral hardware can be stopped by bit4 (EN-
PCK) of CKCTLR Register. ENPCK is set to “1” in reset
state.
Clock Control Register (W)
CKCTLR
ADDRESS : 0C7H
INITIAL VALUE : --110111b
0
1
2
3
4
5
6
7
ENPCK
0: Stopped
1: Provided
Figure 10-1 Block diagram of Clock Generator
Internal system clock (CPU clock)
PRESCALER
÷1
Peripheral clock
÷2
÷4
÷8
÷16
÷128 ÷256 ÷512 ÷1024
÷32
÷64
PS0
PS1
PS2
PS3
PS4
PS5
PS6
PS7
PS8
PS9
PS10
CLOCK PULSE
fEX(MHz)
PS0
PS3
PS2
PS4
PS1
PS10
PS9
PS5
PS6
PS7
4
Frequency
period
4M
1M
500K
250K
2M
125K
62.5K
250n
500n
1u
2u
4u
8u
16u
32u
64u
256u
128u
3.906K
7.183K
15.63K
31.25K
PS8
GENERATOR
OSC
CIRCUIT
PS11
PS12
1.953K
512u
0.976K
1024u
PS11 PS12
÷2048 ÷4096
fex



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