參數(shù)資料
型號(hào): 935210470512
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQCC68
封裝: PLASTIC, LCC-68
文件頁(yè)數(shù): 51/112頁(yè)
文件大?。?/td> 693K
代理商: 935210470512
1996 Jun 27
43
Philips Semiconductors
Product specication
8-bit microcontroller with on-chip CAN
P8xC592
13.5.10 BUS TIMING REGISTER 1(BTR1)
The contents of Bus Timing Register 1 defines the length
of the bit period, the location of the sample point and the
number of samples to be taken at each sample point.
This register can be accessed (read/write) if the Reset
Request bit is set HIGH (present).For further information
on bus timing, see Sections 13.5.9 and 13.5.18.
Table 47 Bus Timing Register 1 (address 7)
Table 48 Description of the BTR1 bits
76543210
SAM
TSEG2.2
TSEG2.1
TSEG2.0
TSEG1.3
TSEG1.2
TSEG1.1
TSEG1.0
BIT SYMBOL
FUNCTION
7
SAM
Sampling. If the bit SAM is:
HIGH (3 samples), then three samples are taken. This is recommended for slow/medium speed
buses (SAE class A and B) where ltering of spikes on the bus-line is benecial
(see Section 13.5.19.6)
LOW (1 sample), the bus is sampled once.
This is recommended for high speed buses (SAE class C).
6
TSEG2.2 Time Segment 1 (TSEG1) and Time Segment 2 (TSEG2).
TSEG1 determines the number of clock cycles per bit period and the location of the sample point
.
TSEG2 determines the number of clock cycles per bit period and the location of the sample point:
.
5
TSEG2.1
4
TSEG2.0
3
TSEG1.3
2
TSEG1.2
1
TSEG1.1
0
TSEG1.0
t
TSEG1
t
SCL 8TSEG1.3
4TSEG1.2
2TSEG1.1
TSEG1.0
1
+++
+
()
=
t
TSEG2
t
SCL 4 TSEG2.2
2TSEG2.1
TSEG2.0
1
++
+
()
=
相關(guān)PDF資料
PDF描述
935089010512 8-BIT, 16 MHz, MICROCONTROLLER, PQCC68
935085020512 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQCC68
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