參數(shù)資料
型號: 9202
廠商: 意法半導(dǎo)體
英文描述: Flash Programmable System Devices with 8032 Microcontroller Core
中文描述: 閃存可編程系統(tǒng)設(shè)備與8032微控制器內(nèi)核
文件頁數(shù): 81/175頁
文件大小: 1731K
代理商: 9202
81/175
UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
Address Register (SxADR: S1ADR, S2ADR)
This 8-bit register may be loaded with the 7-bit
slave address to which the controller will respond
when programmed as a slave receive/transmitter.
The Start/Stop Hold Time Detection and System
Clock registers (Tables 57 and 58) are included in
the I
2
C unit to specify the start/stop detection time
to work with the large range of MCU frequency val-
ues supported. For example, with a system clock
of 40MHz.
Table 56. Address Register (SxADR)
Note: 1. SLA6 to SLA0: Own slave address.
Table 57. Start /Stop Hold Time Detection Register (S1SETUP, S2SETUP)
Table 58. System Cock of 40MHz
Table 59. System Clock Setup Examples
7
6
5
4
3
2
1
0
SLA6
SLA5
SLA4
SLA3
SLA2
SLA1
SLA0
Address
Register Name
Reset Value
Note
SFR
D1h
S1SETUP
00h
To control the start/stop hold time detection for the DDC module
in Slave Mode
D2h
S2SETUP
00h
To control the start/stop hold time detection for the multi-master
I2C module in Slave Mode
S1SETUP,
S2SETUP Register
Value
Number of Sample
Clock (f
OSC
/2 ->
50ns)
Required Start/
Stop Hold Time
Note
00h
1EA
50ns
When Bit 7 (enable bit) = 0, the number of
sample clock is 1EA (ignore Bit 6 to Bit 0)
80h
1EA
50ns
81h
2EA
100ns
82h
3EA
150ns
...
...
...
8Bh
12EA
600ns
Fast Mode I2C Start/Stop hold time specification
...
...
...
FFh
128EA
6000ns
System Clock
S1SETUP,
S2SETUP Register
Value
Number of Sample
Clock
Required Start/Stop Hold Time
40MHz (f
OSC
/2 -> 50ns)
8Bh
12 EA
600ns
30MHz (f
OSC
/2 -> 66.6ns)
89h
9 EA
600ns
20MHz (f
OSC
/2 -> 100ns)
86h
6 EA
600ns
8MHz (f
OSC
/2 -> 250ns)
83h
3 EA
750ns
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