XC167CI_02 Datasheet, PDF (77/79 Pages) Infineon Technologies AG – 16-Bi t Single-Chip Microcontroller Preliminary

Preliminary
CLKOUT
tc₄₀
HOLD
XC167
Derivatives
Timing Parameters
3)
tc₄₁
HLDA
BREQ
tc₄₁
1)
CSx, RD,
WR(L/H)
Addr, Data,
BHE
tc₁₀|tc₁₄
2)
tc₁₁|tc₁₂|tc₁₃|tc₁₅|tc₁₆
Figure 24 External Bus Arbitration, (Regaining the Bus)
Notes
1) _{This is the last chance for BREQ to trigger the indicated regain-sequence.}
Even if BREQ is activated earlier, the regain-sequence is initiated by HOLD going high.
Please note that HOLD may also be deactivated without the XC167 requesting the bus.
2) _{The control outputs will be resistive high (pullup) before being driven inactive (ALE will be low).}
3) _{The next XC167 driven bus cycle may start here.}
Data Sheet
73
V1.0, 2002-10