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ATmega32HVB 데이터시트(PDF) 236 Page - ATMEL Corporation

부품명 ATmega32HVB
상세설명  8-bit Microcontroller with 16K/32K Bytes In-System Programmable Flash
PDF  273 Pages
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega32HVB 데이터시트(HTML) 236 Page - ATMEL Corporation

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236
8042A–AVR–07/09
ATmega16HVB/32HVB
Figure 32-1. Two-wire Serial Bus Timing
32.14 SPI Timing Characteristics
See Figure 32-2 on page 237 and Figure on page 237 for details.
Note:
1. Refer to ”Serial Programming” on page 211 for serial programming requirements.
tSU;STA
tLOW
tHIGH
tLOW
tof
tHD;STA
tHD;DAT
tSU;DAT
tSU;STO
tBUF
SCL
SDA
tr
Table 32-16. SPI Timing Parameters
Description
Mode
Min
Typ
Max
Units
1
SCK period
Master
See Figure
ns
2
SCK high/low
Master
50% duty
3
Rise/Fall time
Master
3.6
4
Setup
Master
10
5
Hold
Master
10
6
Out to SCK
Master
0.5 • tsck
7
SCK to out
Master
10
8
SCK to out high
Master
10
9SS low to out
Slave
15
10
SCK period
Slave
4 • tck + 40 ns
11
SCK high/low(1)
Slave
2 • tck + 20 ns
12
Rise/Fall time
Slave
1.6
µs
13
Setup
Slave
10
ns
14
Hold
Slave
tck
15
SCK to out
Slave
15
16
SCK to SS high
Slave
20
17
SS high to tri-state
Slave
10
18
SS low to SCK
Slave
20



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