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System Clocks
Figure 3–6 AlphaPC 164UX System Clocks
Clock Gen
(Fast)
TQ2061
pc164ux.4
Refclkout
Clock Gen
Oscillator
(Slow)
CY2907
pc164ux.4
pc164ux.4
buf_dramclkax2
buf_dramclkbx2
21174
buf_dramclkcx2
buf_dramclkdx2
buf_dramclkex2
buf_dramclkfx2
p64_clk6
p64_clk5
p64_clk4
p64_clk3
p64_clk2
p64_clk1
p64_clk0
pc164ux.10
p32_clk7
Clock Driver
p32_clk6
(163344)
p32_clk5
p32_clk<4:0>
pc164ux.4
PCI
32 Slots
pc164ux.20-22
Functional Description
3–16
Oscclkin
21164
*Oscclkin
Microprocessor
CY2308
PLL
pc164ux.2
Sysclk
DIMM0
DIMM1
DIMM2
DIMM3
DIMM4
DIMM5
DMA
Hack
pc164ux.27
Ethernet
Controller
PCI to PCI
Bridge
pc164ux.26
(21052)
pc164ux.19
Arbiter
pc164ux.18
SCSI
Controller
pc164ux.24
Arbiter
pc164ux.18
82371SB
Bridge
osc14mhz
pc164ux.28
PCI
64 Slot
pc164ux.23
v83_sysclk
KBD
Controller
pc164ux.33
14.3MHz
Oscillator
pc164ux.28
ISA
Slots
pc164lx.29
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