參數(shù)資料
型號(hào): LR38666Y
廠商: Sharp Corporation
元件分類: 數(shù)字信號(hào)處理
英文描述: CMOS digital signal processor
中文描述: CMOS數(shù)字信號(hào)處理器
文件頁(yè)數(shù): 35/38頁(yè)
文件大?。?/td> 203K
代理商: LR38666Y
LR38666Y
35
GIO PORT PWM OUTPUT TIMING
T
PWML
T
PWMH
GIO [15 : 0]
T
PWMW
Fig. 18 GIO I/O Timing
PARAMETER
SYMBOL
T
PWMW
T
PWML
T
PWMH
CONDITIONS
256
0 to 256
T
PWMW
– T
PWML
UNIT
T
BCLK
T
BCLK
T
BCLK
NOTE
1, 2
1, 2
1, 2
Output pulse width
"Low" output pulse width
"High" output pulse width
NOTES :
1. Output load capacity C
L
= 15 pF
2. T
BCLK
is twice the internal bus clock period.
(DV
DD
= 3.3 V, DV
DD2
= 2.5 V, T
A
= 0 to +70C)
PARAMETER
SYMBOL
CONDITIONS
TYP.
T
BRCK
UNIT
NOTE
MIN.
MAX.
SCLKI clock input cycle
SDI0 input setup time
SDI0 input hold time
SCLKO clock output cycle
SDO0 output delay
T
SCLKI
T
SDI0S
T
SDI0H
T
SCLKO
T
SDO0D
ns
ns
ns
ns
ns
2
2
2
1/4 T
BRCK
1/4 T
BRCK
T
BRCK
1, 2
1, 2
NOTES :
1. Output load capacity C
L
= 15 pF
2. T
BRCK
means the baud rate clock frequency.
If COMI (24 MHz) is used and baud rate generator control register BKGC is set to 0x138 (9 600 bps), T
BRCK
is given as follows : T
BRCK
= [48 MHz/(312*16)]
–1
= 104 μs
–1/4 T
BRCK
1/4 T
BRCK
USART TIMING
SCLKI
SDI
0
SDO
0
SCLKO
T
SCLKI
T
SCLKO
T
SDI0S
T
SDI0H
T
SDO0D
Fig. 17 USART Communication Cycle
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