IBM MPC603EC, User Manual

Page: 8 / 30

8 603 Hardware Specifications, REV 2
Preliminary—Subject to Change without Notice
Table 6. Input AC Timing Specifications
Vdd = 3.3
±
5% V dc, GND = 0 V dc , 0
≤
T
J
≤
105
°
C
Num Characteristic
25 MHz 33.33 MHz 40 MHz 50 MHz 66.67 MHz
Unit
Notes
Min Max Min Max Min Max Min Max Min Max
10a Address/data/transfer
attribute inputs valid
to SYSCLK (input
setup) 4.5 — 4.0 — 3.5 — 3.0 — 2.5 — ns 2
10b All other inputs valid
to SYSCLK (input
setup) 6.5 — 6.0 — 5.5 — 5.0 — 4.5 — ns 3
10c Mode select inputs
valid to HRESET
(input setup)
(for DRTRY, QACK
and TLBISYNC) 8 *
t
sys
— 8 *
t
sys
— 8 *
t
sys
— 8 *
t
sys
— 8 *
t
sys
— ns 4,5,
6,7
11a SYSCLK to
address/data/transfer
attribute inputs
invalid (input hold) 1.0 — 1.0 — 1.0 — 1.0 — 1.0 — ns 2
11b SYSCLK to all other
inputs invalid (input
hold) 1.0 — 1.0 — 1.0 — 1.0 — 1.0 — ns 3
11c HRESET to mode
select inputs invalid
(input hold)
(for DRTRY, QACK,
and TLBISYNC) 0 — 0 — 0 — 0 — 0 — ns 4,6,7
Notes: 1. All input specifications are measured from the TTL level (0.8 or 2.0 V) of the signal in question to the 1.4 V of the
rising edge of the input SYSCLK. Both input and output timings are measured at the pin. See Figure 2.
2. Address/data/transfer attribute input signals are composed of the following: A0–A31, AP0–AP3, TT0–TT4,
TC0–TC1, TBST, TSIZ0–TSIZ2, GBL, DH0–DH31, DL0–DL31, DP0–DP7.
3. All other input signals are composed of the following: TS, XATS, ABB, DBB, ARTRY, BG, AACK, DBG, DBWO, TA,
DRTRY, TEA, DBDIS,HRESET, SRESET, INT, SMI, MCP, TBEN, QACK, TLBISYNC.
4. The setup and hold time is with respect to the rising edge of HRESET. See Figure 3.
5. t
SYS
is the period of the external clock (SYSCLK) in nanoseconds.
6. These values are guaranteed by design, and are not tested.
7. This specification is for configuration mode only. Also note that HRESET must be held asserted for a minimum of
255 bus clocks after the PLL relock time (100
µ
s) during the power-on reset sequence.