User Guide

PAMS Technical Documentation 3. System Module
NSD-5
Issue 1 05/02 Nokia Corporation Page 37
(a) RC filters with time constant = 100 ns used on these signals for ESD protection.
Table 9: Electrical characteristics of the user interface
Functional Timing
Serial Port Functional Timing
Figures (19) and (20) provide LCD serial interface timing information. Reference 1 gives a
detailed description of the functional timing requirements for the serial port interface.
See Reference 6 for a detailed description and timing of the serial protocol for the
CCONT device. See Reference 1 for a detailed description and timing of the serial proto-
col for the serial LCD device.
Figure 19: Serial port transmit timing
Figure 20: Serial port receive timing
UIF_CCONT_SCLK LCD/CCONT > 2.24 < 0.62 10 ns 10 ns serial port clock
UIF_CCONT_SDIO LCD/CCONT > 2.24 < 0.62 10 ns 10 ns serial data
CCONTCSX CCONT > 2.24 < 0.62 16 ns 16 ns chip-select to the
CCONT serial device
Parameters Definition Minimum Maximum Unit
Tcspd Falling edge to chip select 100 ns
Tcdpd Falling edge to command/data select 100 ns
Tsdo Falling edge to data out 0 ns
Signal To
Signal Level (V)
High Low
Rising
time
Falling
time
Function