參數(shù)資料
型號: 8XC562
廠商: NXP Semiconductors N.V.
英文描述: 80C51 FAMILY DERIVATIVES
中文描述: 80C51系列衍生物
文件頁數(shù): 18/60頁
文件大小: 382K
代理商: 8XC562
Philips Semiconductors
80C51 Family Derivatives
8XC552/562 overview
1996 Aug 06
18
Shift In
SDA
SCL
D7
D6
D5
D4
D3
D2
D1
D0
A
Shift ACK & S1DAT
ACK
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
A
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(1)
(1)
S1DAT
Shift BSD7
BSD7
D7
D6
D5
D4
D3
D2
D1
D0
(3)
Loaded by the CPU
(1) Valid data in S1DAT
(2) Shifting data in S1DAT and ACK
(3) High level on SDA
Shift Out
Figure 16. Shift-in and Shift-out Timing
Table 2.
Serial Clock Rates
BIT FREQUENCY (kHz) AT f
OSC
6MHz
12MHz
CR2
CR1
CR0
16MHz
f
OSC
DIVIDED BY
256
224
192
160
960
120
60
96
×
(256 – reload value Timer 1)
(Reload value range: 0 – 254 in mode 2)
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
23
27
31
37
6.25
50
100
47
54
63
75
12.5
100
63
71
83
100
17
0.25 < 62.5
0.5 < 62.5
0.67 < 56
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