mpc853pzt80a Freescale Semiconductor, Inc, mpc853pzt80a Datasheet - Page 18

• Manufacturer Part Number: mpc853pzt80a
• Description: Mpc853t Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Bus Signal Timing
18
B29b
B29d
B29e
B29g
B29h
B30a
Num
B29c
B29f
B29i
B30
CS negated to D(0:31), DP(0:3), High Z
GPCM write access, ACS = 00,
TRLX = 0,1 and CSNT = 0
(MIN = 0.25 × B1 – 2.00)
CS negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 0, CSNT = 1,
ACS = 10, or ACS = 11 EBDF = 0
(MIN = 0.50 × B1 – 2.00)
WE(0:3)/BS_B[0:3] negated to D(0:31),
DP(0:3) High-Z GPCM write access, TRLX
= 1, CSNT = 1, EBDF = 0
(MIN = 1.50 × B1 – 2.00)
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
(MIN = 1.50 × B1 – 2.00)
WE(0:3/BS_B[0:3]) negated to D(0:31),
DP(0:3) High Z GPCM write access,
TRLX = 0, CSNT = 1, EBDF = 1
(MIN = 0.375 × B1 – 6.30)
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
(MIN = 0.375 × B1 – 6.30)
WE(0:3)/BS_B[0:3] negated to D(0:31),
DP(0:3) High Z GPCM write access,
TRLX = 1, CSNT = 1, EBDF = 1
(MIN = 0.375 × B1 – 3.30)
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
(MIN = 0.375 × B1 – 3.30)
CS, WE(0:3)/BS_B[0:3] negated to
A(0:31), BADDR(28:30) Invalid GPCM
write access
WE(0:3)/BS_B[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
(MIN = 0.50 × B1 – 2.00)
9
Characteristic
(MIN = 0.25 × B1 – 2.00)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
8
8
Table 9. Bus Operation Timings (continued)
13.20
43.50
43.50
38.40
38.40
13.20
5.60
5.00
5.00
5.60
Min
33 MHz
Max
—
—
—
—
—
—
—
—
—
—
10.50
35.50
35.50
31.10
31.10
10.50
4.30
3.00
3.00
4.30
Min
40 MHz
Max
—
—
—
—
—
—
—
—
—
—
28.00
28.00
24.20
24.20
3.00
8.00
1.10
1.10
3.00
8.00
Min
50 MHz
Max
—
—
—
—
—
—
—
—
—
—
Freescale Semiconductor
20.70
20.70
17.50
17.50
5.60
5.60
1.80
0.00
0.00
1.80
Min
66 MHz
Max
—
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns