scn26562 NXP Semiconductors, scn26562 Datasheet - Page 12

• Manufacturer Part Number: scn26562
• Description: Dual Universal Serial Communications Controller Duscc
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS (Continued)
1995 May 1
Dual universal serial communications controller (DUSCC)
SYMBOL
SYMBOL
t
t
t
t
t
RTxDRQN OR
WRLTRH
WRLEOL
WRHEOZ
EILWRH
WRHEIH
(OUTPUT)
TxDRQN
(INPUT)
A
D7–D0
EOPN
EOPN
WRN
CEN
The TxFIFO is addressed during this write cycle.
WRN low to Tx DMA REQN high
WRN low to EOPN output low
WRN high to EOPN output high impedance
EOPN input low to WRN high
WRN high to EOPN input high
PARAMETER
PARAMETER
Figure 12. Transmit Dual Address DMA Timing
12
Min
50
50
SCN26562C4
t
t
WRLEOL
WRLTRH
t
EILWRH
Max
320
225
225
LIMITS
A
Min
50
50
SCN26562C2
t
WRHEOZ
Max
SCN26562
320
225
225
Product specification
t
WRHEIH
SD00214
UNIT
UNIT
ns
ns
ns
ns
ns