scn26562 NXP Semiconductors, scn26562 Datasheet - Page 16

• 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
RWHIRH
LCN
LCN
RxC
RxD
RxC
RxD
a. Loop Control Output Assertion
b. Loop Control Output Negation
RDN/WRN high to IRQN high for:
Read RxFIFO (RxRDY interrupt)
Write TxFIFO (TxRDY interrupt)
Write RSR (Rx condition interrupt)
Write TRSR (Rx/Tx interrupt)
Write ICTSR (counter/timer interrupt)
COMMAND
X1/CLK
VALID
RDN/WRN
WRN
Figure 18. Relationship Between Received Data and the Loop Control Output
1
1
IRQN
PARAMETER
PARAMETER
2
2
3
3
Figure 17. Command Timing
Figure 16. Interrupt Timing
4
4
16
5
5
Min
t
SCN26562C4
RWHIRH
6
6
V
Max
M
450
450
400
400
400
LIMITS
7
7
V
OL
+0.2V
Min
V
SCN26562C2
OL
8
8
Max
SCN26562
450
450
400
400
400
9
Product specification
SD00220
SD00219
UNIT
UNIT
SD00218
ns
ns
ns
ns
ns