參數(shù)資料
型號: TS68302
廠商: Atmel Corp.
英文描述: Integrated Multiprotocol Processor IMP
中文描述: 集成多協(xié)議處理器進(jìn)出口
文件頁數(shù): 32/47頁
文件大?。?/td> 1149K
代理商: TS68302
32
TS68302
2117A–HIREL–11/02
Notes:
1. The ratio CLK/TCLK1 and CLK/RCLK1 must be greater than 2.5/1 for external clock. For internal clock the ratio must be
greater than 3/1 (the input clock to the baud rate generator may be either CLK or TIM1), in both cases the maximum fre-
quency is limited to 16.67 MHz. In asynchronous mode (UART), the bit rate is 1/16 of the clock rate.
2. Schmitt triggers used on input buffers.
3. Also applies to CD hold time when CD is used as an external sync in BISYNC or totally transparent mode.
4. See Figure 26.
Figure 25.
PCM Timing Diagram
Table 22.
AC Electrical Specifications - NMSI Timing
(4)
The NMSI mode uses two clocks, one for receive and one for transmit. Both clocks can be internal or external. When the
clock is internal, it is generated by the internal baud rate generator and it is output on L1R x D or L1T x D. All the timing is
related to the external clock pin. The timing is specified for NMSI1. It is also valid for NMS12 and NMS13.
Num.
Parameter
Internal Clock
External Clock
Unit
Min
Max
Min
Max
315
RCLK1 and TCLK1 frequency
(1)
5.12
6.668
MHz
316
RCLK1 and TCLK1 low/high
70
55
ns
317
RCLK1 and TCLK1 rise/fall time
(2)
ns
318
T x D1 active delay TCLK1 falling edge
0
40
0
70
ns
319
RTS1 active/inactive delay from TCLK1 falling edge
0
40
0
100
ns
320
CTS1 setup time to TCLK1 rising edge
50
10
ns
321
R x D1 setup time to RCLK1 rising edge
50
10
ns
322
R x D1 hold time from RCLK1 rising edge
(3)
10
50
ns
323
CD1 setup time to RCLK1 rising edge
50
10
ns
302
300
310
301
305
304
307
306
309
308
302
303
311
307
L1CLK
(INPUT)
L1SY0
L1SY1
(INPUT)
L1SY0
L1SY1
(INPUT)
L1TXD
(OUTPUT)
L1TXD
(OUTPUT)
L1RXD
(INTPUT)
SYNC ENVELOPES DATAS
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
11
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