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Z86319 Datasheet(PDF) 13 Page - Zilog, Inc.

Part # Z86319
Description  PS/2 MOUSE CONTROLLER
PDF  23 Pages
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Manufacturer  ZILOG [Zilog, Inc.]
Direct Link  http://www.zilog.com
Logo ZILOG - Zilog, Inc.

Z86319 Datasheet(HTML) 13 Page - Zilog, Inc.

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Z86319
Zilog
PS/2 Mouse Controller
DS97KEY1605
P R E L I M I N A R Y
13
1
FUNCTIONAL DESCRIPTION
The Z86319 MCU incorporates the following special fea-
tures to enhance the Z8 architectural core for use in mice,
trackballs, and other consumer applications.
Reset. Upon power-up, the Power-On Reset circuit waits
for TPOR, plus 18 clock cycles, then starts program exe-
cution at address 000CH (Figure 13). The Z86319 control
registers' reset values are shown in Table 4.
Figure 13. Internal Reset Configuration
Table 4. Z86319 Control Registers
Reset Values
Addr.
Reg.
D7
D6
D5
D4
D3
D2
D1
D0
Comments
F1
TMR
0
0
0
0
0
0
0
0
F2
T1
U
U
U
U
U
U
U
U
F3
PRE1
U
U
U
U
U
U
0
0
F4
T0
U
U
U
U
U
U
U
U
F5
PRE0
U
U
U
U
U
U
U
0
F6
P2M
1
1
1
1
1
1
1
1
Inputs after reset
F7
P3M
U
U
U
U
U
U
1
0
F8
P01M
U
U
U
0
U
U
0
1
F9
IPR
U
U
U
U
U
U
U
U
FA
IRQ
U
U
0
0
0
0
0
0
FB
IMR
0
U
U
U
U
U
U
U
FC
FLAGS
U
U
U
U
U
U
U
U
FD
RP
U
U
U
U
U
U
U
U
FF
SPL
U
U
U
U
U
U
U
U
Delay
TPOR
18 CLK
Reset Filter
Chip
Reset
RC OSC
POR
(Cold Start)



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