XC228X_08 Datasheet, PDF (116/125 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance

XC2287 / XC2286 / XC2285
XC2000 Family Derivatives
Electrical Parameters
CLKOUT
3)
t₄₀
HOLD
t₄₁
HLDA
BREQ
CSx, RD,
WR(L/H)
Addr, Data,
BHE
t₄₁
1)
t₁₀/t₁₄
2)
t₁₁/t₁₂/t₁₃/t₁₅/t₁₆
MC_X_EBCARBREG
Figure 26 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 XC228x requesting
the bus.
2. The control outputs will be resistive high (pull-up) before being driven inactive (ALE
will be low).
3. The next XC228x-driven bus cycle may start here.
Data Sheet
114
V2.1, 2008-08