ADUC7020 Analog Devices, ADUC7020 Datasheet - Page 10
ADUC7020
Manufacturer Part Number
ADUC7020
Description
Manufacturer
Analog Devices
Datasheet
1.ADUC7029.pdf
(96 pages)
Specifications of ADUC7020
Mcu Core
ARM7 TDMI
Mcu Speed (mips)
40
Sram (bytes)
8192Bytes
Gpio Pins
14
Adc # Channels
5
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ADuC7019/20/21/22/24/25/26/27/28/29
Table 3. External Memory Read Cycle
Parameter
CLK
t
t
t
t
t
t
t
t
t
t
t
1
MS_AFTER_CLKH
ADDR_AFTER_CLKH
AE_H_AFTER_MS
AE
HOLD_ADDR_AFTER_AE_L
RD_L_AFTER_AE_L
RD_H_AFTER_CLKH
RD
DATA_BEFORE_RD_H
DATA_AFTER_RD_H
RELEASE_MS_AFTER_RD_H
See Table 78.
1
AD[16:1]
ECLK
MSx
BHE
BLE
A16
WS
AE
RS
FFFF
t
MS_AFTER_CLKH
CLK
t
ADDR_AFTER_CLKH
t
AE_H_AFTER_MS
Min
1/MD clock
4
4
0
16
8
2348
t
AE
t
RD_L_AFTER_AE_L
Figure 4. External Memory Read Cycle (See Table 78)
XXXX CDEF XX
t
HOLD_ADDR_AFTER_AE_L
t
RD
Typ
ns typ × (POWCON[2:0] + 1)
½ CLK
(XMxPAR[14:12] + 1) × CLK
½ CLK + (! XMxPAR[10] ) × CLK
½ CLK + (! XMxPAR[10]+ ! XMxPAR[9] ) × CLK
(XMxPAR[3:0] + 1) × CLK
+ (! XMxPAR[9]) × CLK
1 × CLK
t
RD_H_AFTER_CLKH
t
Rev. D | Page 10 of 96
DATA_BEFORE_RD_H
t
DATA_AFTER_RD_H
234A
XX
Max
8
16
4
89AB
t
RELEASE_MS_AFTER_RD_H
Unit
ns
ns
ns