ADUC7028 Analog Devices, ADUC7028 Datasheet - Page 10

• Manufacturer Part Number: ADUC7028
• Manufacturer: Analog Devices

Specifications of ADUC7028

• Mcu Core: ARM7 TDMI
• Mcu Speed (mips): 40
• Flash (kbytes): 62Bytes
• Sram (bytes): 8192Bytes
• Gpio Pins: 40
• Adc # Channels: 8

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