MPC860 PowerQUICC Family Hardware Specifications, Rev. 9
18 Freescale Semiconductor
Bus Signal Timing
B29d WE(0:3) negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 1, CSNT = 1,
EBDF = 0
43.45 — 35.5 — 28.00 — 20.73 — ns
B29e CS negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 1, CSNT = 1,
ACS = 10, or ACS = 11, EBDF = 0
43.45 — 35.5 — 28.00 — 29.73 — ns
B29f WE(0:3) negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 0, CSNT = 1,
EBDF = 1
8.86 — 6.88 — 5.00 — 3.18 — ns
B29g CS negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 0, CSNT = 1,
ACS = 10, or ACS = 11, EBDF = 1
8.86 — 6.88 — 5.00 — 3.18 — ns
B29h WE(0:3) negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 1, CSNT = 1,
EBDF = 1
38.67 — 31.38 — 24.50 — 17.83 — ns
B29i CS negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 1, CSNT = 1,
ACS = 10, or ACS = 11, EBDF = 1
38.67 — 31.38 — 24.50 — 17.83 — ns
B30 CS, WE(0:3) negated to A(0:31),
BADDR(28:30) invalid GPCM write access 8
5.58 — 4.25 — 3.00 — 1.79 — ns
B30a WE(0:3) negated to A(0:31), BADDR(28:30)
invalid GPCM, write access, TRLX = 0,
CSNT = 1, CS negated to A(0:31) invalid
GPCM write access, TRLX = 0, CSNT = 1
ACS = 10, or ACS = 11, EBDF = 0
13.15 — 10.50 — 8.00 — 5.58 — ns
B30b WE(0:3) negated to A(0:31), invalid GPCM
BADDR(28:30) invalid GPCM write access,
TRLX = 1, CSNT = 1. CS negated to
A(0:31), Invalid GPCM, write access,
TRLX = 1, CSNT = 1, ACS = 10, or
ACS = 11, EBDF = 0
43.45 — 35.50 — 28.00 — 20.73 — ns
B30c WE(0:3) negated to A(0:31), BADDR(28:30)
invalid GPCM write access, TRLX = 0,
CSNT = 1. CS negated to A(0:31) invalid
GPCM write access, TRLX = 0, CSNT = 1,
ACS = 10, ACS = 11, EBDF = 1
8.36 — 6.38 — 4.50 — 2.68 — ns
B30d WE(0:3) negated to A(0:31), BADDR(28:30)
invalid GPCM write access, TRLX = 1,
CSNT =1. CS negated to A(0:31) invalid
GPCM write access TRLX = 1, CSNT = 1,
ACS = 10, or ACS = 11, EBDF = 1
38.67 — 31.38 — 24.50 — 17.83 — ns
B31 CLKOUT falling edge to CS valid—as
requested by control bit CST4 in the
corresponding word in UPM
1.50 6.00 1.50 6.00 1.50 6.00 1.50 6.00 ns
Table 7. Bus Operation Timings (continued)
Num Characteristic
33 MHz 40 MHz 50 MHz 66 MHz
Unit
Min Max Min Max Min Max Min Max