ez80f92 ZiLOG Semiconductor, ez80f92 Datasheet - Page 246

• Manufacturer Part Number: ez80f92
• Description: Ez80acclaim Flash Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 153. Bus Acknowledge Timing
Table 154. PHI System Clock Timing
PS015313-0508
External Bus Acknowledge Timing
External System Clock Driver (PHI) Timing
Table 153
ter detects BUSACK asserted and drives IORQN, MREQN, A[23:0] there is an asynchro-
nous prop delay to the CS[3:0] outputs being valid.
Table 154
als to synchronize with the internal system clock driver on the eZ80F92 device.
Parameter
T
T
T
Parameter
T
T
1
2
3
1
2
lists information about the bus acknowledge timing. Once the external bus mas-
lists timing information for the PHI pin. The PHI pin allows external peripher-
Abbreviation
Clock Rise to BUSACK Assertion Delay
Clock Rise to BUSACK Deassertion Delay
IORQN, MREQN, A[23:0] input to CS[3:0]
output prop delay
Abbreviation
Clock (XIN) Rise to PHI Rise
Clock (XIN) Fall to PHI Fall
Product Specification
Min
Min
Electrical Characteristics
2.0
2.0
—
—
—
Delay (ns)
Delay (ns)
Max
14.0
14.0
10.0
Max
6.0
6.0
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