参数资料
型号: TMS320C2812ZHHS
厂商: TEXAS INSTRUMENTS INC
元件分类: 数字信号处理
英文描述: 16-BIT, 150 MHz, OTHER DSP, PBGA179
封装: LEAD FREE, BGA-179
文件页数: 62/156页
文件大小: 1826K
代理商: TMS320C2812ZHHS
Electrical Specifications
154
April 2001 Revised October 2005
SPRS174M
Formulas to compute page wait state and random wait state:
Page Wait State
+
t
a(fp)
t
c(SCO)
* 1 (round up to the next highest integer), or 0 whichever is larger
Random Wait State
+
t
a(fr)
t
c(SCO)
* 1 (round up to the next highest integer), or 1 whichever is larger
§ Random wait state must be greater than or equal to 1
6.33
ROM Timing (C281x only)
Table 660. ROM Access Timing
PARAMETER
MIN
MAX
UNIT
ta(rp)
Paged ROM access time
23
ns
ta(rr)
Random ROM access time
23
ns
ta(ROM)
ROM (OTP area) access time (see Note 2)
60
ns
NOTES:
1. For 150 MHz, PAGE WS = 3 and RANDOM WS = 3
For 135 MHz, PAGE WS = 3 and RANDOM WS = 3
2. In C281x devices, a 1K
× 16 ROM block replaces the OTP block found in Flash devices.
Table 661. Minimum Required Wait-States at Different Frequencies (C281x devices)
SYSCLKOUT (MHz)
SYSCLKOUT (ns)
PAGE WAIT-STATE
RANDOM WAIT STATE
150
6.67
3
120
8.33
2
100
10
2
75
13.33
1
50
20
1
30
33.33
0
1
25
40
0
1
15
66.67
0
1
4
250
0
1
Formulas to compute page wait state and random wait state:
Page Wait State
+
t
a(rp)
t
c(SCO)
* 1 (round up to the next highest integer), or 0 whichever is larger
Random Wait State
+
t
a(rr)
t
c(SCO)
* 1 (round up to the next highest integer), or 1 whichever is larger
Random wait state must be greater than or equal to 1
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