English
Language : 

PACE1757M Datasheet, PDF (9/34 Pages) Pyramid Semiconductor Corporation – COMPLETE EMBEDDED CPU SUBSYSTEM
◁
PACE 1757 M/ME
SIGNAL PROPAGATION DELAYS (cont'd)
Symbol
TD/I(EXT ADR)V
TSTRBD(EXT ADR ER)
TIBDV(EDC GEN)V
TC(GNT)
TC(RDYA)
TIBDIN(MEM PAR ER)
TC(MEM PRT ER)
TSTRBD (WR PROT)
TC(WR PROT)I
TD/I(PROT FLAG)
TD/I(PROT FLAG)
TC(PROT FLAG)
TC(PROT FLAG)
TC(EXT ADR)V
TFC(IB OUT)V
TEX RDY1(RDYD)
TEX RDY(RDYD)
TC (RDYD)V
TSTRBAh(A)V
TIBAV(A)V
TFC (R)L
TSTRBDH(R)H
TSTRBDH(W)L
TSTRBDL(W)H
TSTRBD(STRTROM)
TC(TIM CLK)
TEXT AD(FC B3)
TF(F), TI(I)
tr, tf
Description
MMU Cache Hit
External Address Error
Error Correction Write Cycle
Arbiter Priority Transition
Address Ready
Parity Mode
Memory Protect Error
Write Protect Cache Hit
Write Protect Cache Miss
Cache Hit (BPU Protection Error)
Cache Hit (MMU Key-Lock Error)
Cache Hit (BPU Protection Error)
Cache Hit (MMU Key-Lock Error)
Clock to EXT Address Valid (Miss)
Clock to EXT Address Valid (Miss)
Ready Data
Ready Data
Ready Data
Address Valid
Address Valid
Read Strobes
Read Strobes
Write Strobes
Write Strobes
Start-Up ROM
Timer Clock
Extended Address Set-Up
Edge Sensitive Pulse Width
Clock Rise and Fall Time
Units = ns
20 MHz
MIN MAX
25
25
30
35
30
34
50
25
25
40
40
25
25
32
30
28
16
28
29
31
24
24
26
26
26
30
10
5
5
30 MHz
MIN MAX
23
20
25
25
25
30
45
20
22
45
35
35
20
30
25
24
13
22
21
22
18
18
20
20
20
25
10
5
5
35 MHz
MIN MAX
23
18
24
22
21
28
43
18
20
42
33
33
20
27
25
23
12.5
19
20
21
15
15
18
18
18
23
10
5
5
40 MHz
MIN MAX
23
16
23
18
17
25
40
16
18
40
30
30
20
23
25
21
11.5
16
19
20
12
12
15
15
15
20
10
5
5
Note
All timing parameters are composed of Three elements. The first "T" stands for timing. The second represents the "from" signal. The third in
parentheses indicates "to" signal. When the CPU clock is one of the signal elements, either the rising edge "E" or the falling edge "FC" is referenced.
When other elements are used, an additional suffix indicates the final logic level of the signal. "L" - low level, "H" - high level, "V" - valid, "Z" - high
impedance, "X" - don't care, "LH" - low to high, "ZH" - high impedance to high, "R" - read cycle, and "W" - write cycle.
Document # MICRO-10 REV B
Page 9 of 34
 ▷