Dell Latitude LM, Service Manual, Page: 20 / 87

System Overview 1-9
Memory (Continued)
Memory access time:
tRAC . . . . . . . . . . . . . . . . 70 ns
tCAC . . . . . . . . . . . . . . . . 20 ns
BIOS address . . . . . . . . . . . . . F000:0000
Connectors
Serial (DTE) . . . . . . . . . . . . . . one 9-pin connector; 16,550-compatible,
16-byte buffer
Parallel . . . . . . . . . . . . . . . . . . one 25-hole connector; unidirectional,
bidirectional, EPP 1.9, or ECP
Monitor . . . . . . . . . . . . . . . . . . one 15-hole connector
PS/2 keyboard/mouse . . . . . . . one 6-pin mini-DIN
Infrared . . . . . . . . . . . . . . . . . . one IrDA 1.0-compliant window
Audio . . . . . . . . . . . . . . . . . . . microphone; headphones/speaker
Audio
Audio type. . . . . . . . . . . . . . . . SoundBlasterPro-compatible voice and
music functions
Audio controller . . . . . . . . . . . ESS 1688
Conversion . . . . . . . . . . . . . . . 16 bit (stereo analog-to-digital and
digital-to-analog)
FM music synthesizer . . . . . . . 20-voice, 72-operator
Interfaces:
Internal . . . . . . . . . . . . . . . ISA bus
External . . . . . . . . . . . . . . . microphone (minijack);
headphones/speaker (minijack)
Internal speaker amplifier . . . . 0.5 W stereo
Controls. . . . . . . . . . . . . . . . . . volume can be controlled through key combina-
tions and software application menus
Table 1-2. Technical Specifications
(Continued)