MICRF600_06 Datasheet, PDF (10/21 Pages) Micrel Semiconductor – 902-928MHz ISM Band Transceiver Module

Micrel, Inc.
MICRF600/MICRF600Z
Programming Interface Timing
Figure 4 and Table 6 show the timing specification for the 3-wire serial programming interface.
SCLK
CS
Tcsr traise
tfall
Tper
Thigh Tread
Tlow
Twrite
Tscl
IO
A6 A5
A0 RW D7 D6
D2 D1 D0
Address Register
Data Register
Figure 4. Programming Interface Timing
LOAD
Symbol
Tper
Thigh
Tlow
tfall
trise
Tcsr
Tcsf
Twrite
Tread
Parameter
Min. period of SCLK (Voltage dividers on IO lines will slow down the
write/read frequency)
Min. high time of SCLK
Min. low time of SCLK
Max. time of falling edge of SCLK
Max. time of rising edge of SCLK
Max. time of rising edge of CS to falling edge of SCLK
Min. delay from rising edge of CS to rising edge of SCLK
Min. delay from valid IO to falling edge of SCLK during a write operation
Min. delay from rising edge of SCLK to valid IO during a read operation
(assuming load capacitance of IO is 25pF)
Min.
50
Values
Typ. Max.
Units
ns
20
ns
20
ns
1
µs
1
µs
0
ns
5
ns
0
ns
75
ns
Table 6. Timing Specification for the 3-wire Programming Interface
July 2006
10
M9999-082505