User`s guide

5.3 Physical Board Parameters
Table 5–2 Board Component List
Locator
Number
Component
Number Component Description
1 U42 Digital Semiconductor 21164 Alpha microprocessor (eb164.2)
2 U41 21171-CA control, I/O interface, and address (CIA) chip
(eb164.8)
3 U32 21171-BA data switch (DSW0) chip (eb164.10)
4 U15 21171-BA data switch (DSW2) chip (eb164.12)
5 U10 21171-BA data switch (DSW1) chip (eb164.11)
6 U2 21171-BA data switch (DSW3) chip (eb164.13)
7 U50 TriQuint TQ2061 phase-locked loop (PLL) clock chip (eb164.3)
8 U49 26.66-MHz clock oscillator (eb164.3)
9 U31 Main memory row address strobe (RAS) PAL (eb164.17)
10 U30 Main memory row address strobe (RAS) PAL (eb164.17)
11 U58 National 87312 combination chip (eb164.27)
12 U57 ISA clock frequency generator chip (eb164.36)
13 X2 14.318-MHz clock oscillator (eb164.36)
14 U33 Motorola 88PL117 phase-locked loop (PLL) system clock chip
(eb164.35)
15 U17 Intel 82378ZB PCI-to-ISA SIO bridge chip (eb164.25)
16 U12 Xilinx serial ROM (initialization code) chip (eb164.4)
17 U11 MACH210A interrupt request and PCI arbiter PAL (eb164.30)
18 U13 Ubus decoder PAL (eb164.30)
19 U14 Flash ROM chip (eb164.33)
20 U7 Intel 8242 mouse and keyboard controller chip (eb164.32)
21 U6 Dallas Semiconductor DS1287 time-of-year (TOY) clock chip
(eb164.33)
5–4 Power and Environmental Requirements