Core8051-M Actel, Core8051-M Datasheet - Page 57

• Manufacturer Part Number: Core8051-M
• Description: Microcontroller Modules & Accessories 8B Microcontroller
• Manufacturer: Actel

Specifications of Core8051-M

• Product: Microcontroller Modules
• Data Bus Width: 8 bit, 16 bit, 32 bit
• Clock Speed: 36 MHz
• Interface Type: JTAG

Figure 6-12 • External Data Memory Write Cycle With Seven Stretch Cycles
APB Bus Cycles
Figure 6-13 • APB Write Transfer Bus Cycle
Figure 6-14 • APB Read Transfer Bus Cycle
memdatao
memaddr
mempsrd
memdatai
memwr
memrd
clk
PENABLE
PENABLE
Example bus cycles for APB bus cycles are shown in
0 ns
PWDATA
PWRITE
PWRITE
PRDATA
PADDR
PADDR
PSEL
PCLK
CLK0
PSEL
(N)
0 ns
0 ns
Read
Sample
100 ns
50 ns
50 ns
100 ns
100 ns
200 ns
R e v i s i o n 2
150 ns
150 ns
Data 1
Addr 1
200 ns
200 ns
Addr
Data
Figure 6-13
300 ns
Addr 1
Data 1
250 ns
250 ns
and
300 ns
Figure
300 ns
400 ns
6-14.
350 ns
350 ns
Core8051s v2.4 Handbook
Write Sample
Read
Sample
N + 1
400 ns
400 ns
(N + 1)
500 ns
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