Z86319 datasheet(13/23 Pages) ZILOG | PS/2 MOUSE CONTROLLER

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Z86319 Folha de dados(PDF) 13 Page - Zilog, Inc.

Nome de Peças	Z86319

Descrição Electrónicos	PS/2 MOUSE CONTROLLER

PDF	23 Pages

Scroll/Zoom	100%

Fabricante Electrônico	ZILOG [Zilog, Inc.]

Página de início	http://www.zilog.com

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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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