User`s guide

3.7 System Clocks
Figure 3–5 System Clocks and Distribution
21164
eb164.2
82378
Bridge
eb164.25
osc14
osc24
87312
Combination
eb164.27
sysclk
clkb
clkb_l
kbclk
msclk
8242
eb164.32
Keyboard
Crystal
MK−2306−14
14.3−MHz
Socketed
Oscillator
eb164.3
26.6−MHz
Socketed
PLL Clock
Generator
X20
eb164.3
Microprocessor
irq_h<3:0>
clk_in_h
clk_in_l
Loop
Filter
PLL
Clock
Driver
eb164.35
CIA
cia_clk
ISA
Sockets
Frequency
Generator
eb164.36
eb164.36
Controller
PCI
Sockets
Controller
sys_clk_out1
and Mouse
DSW0
DSW1
DSW2
DSW3
dsw0_clk
pci0_clk
sio_clk
dsw1_clk
dsw2_clk
dsw3_clk
pci1_clk
pci2_clk
pci3_clk
Functional Description 3–17