TCM4300 Datasheet, PDF (30/69 Pages) Texas Instruments – Advanced RF Cellular Telephone Interface Circuit (ARCTIC )

3.7 TCM4300 to Microcontroller Interface Timing Requirements (Motorola
16-Bit Write Cycle) (see Figure 3–7 and Note 4)
PARAMETER
Setup time, read/write MCRW stable before falling edge of
tsu(R/W) _{strobe MCDS}
th(R/W)
Hold time, read/write MCRW stable after rising edge of
strobe MCDS
tsu(WA)
Setup time, write address MCA stable before falling edge
of strobe MCDS
th(WA)
Hold time, write address MCA stable after rising edge of
strobe MCDS
tsu(W)
Setup time, write data stable MCD before rising edge of
strobe MCDS
th(W)
Hold time, write data stable MCD after rising edge of strobe
MCDS
tw(WSTB) Pulse duration, write strobe pulse width low on MCDS
th(CS)
Hold time, chip select MCCSH and MCCSL stable before
falling edge of strobe MCDS
tsu(CS)
Setup time, chip select MCCSH and MCCSL stable before
rising edge of strobe MCDS
ALTERNATE
SYMBOL
TRW(SU)
TRW(HO)
TWA(SU)
TWA(HO)
TWD(SU)
TWD(HO)
TWR(STB)
TCS(HO)
TCS(SU)
MIN MAX UNIT
0
ns
10
ns
0
ns
10
ns
14
ns
0
ns
60
ns
0
ns
0
ns
NOTE 4: Timings are based upon Motorola 68HC000 (16.67 MHz) and Motorola 68302 (16 MHz).
MCDS
(see Note A)
90%
tsu(R _{/ W)}
10%
tw(WSTB)
10%
90%
th(R _{/ W)}
MCRW
10%
tsu(WA)
10%
th(WA)
MCA0–MCA4
MCD0–MCD7
tsu(W)
th(W)
MCCSH
90%
tsu(CS)
th(CS)
90%
MCCSL
10%
10%
NOTE A: Chip selection is defined as both MCCS and MCDS active.
Figure 3–7. Microcontroller Interface Timing Requirements
(Motorola 16-Bit Write Cycle, MTS [1:0] = 10)
3–8