Z86U18FSC View Datasheet(PDF) - Zilog

Part Name

Description

MFG CO.

Z86U18FSC

USB DEVICE CONTROLLER WITH CMOS Z86K15 MCU

Zilog 

Zilog

Bit

mC

7:0

R/W

Z86U18

USB Device Controller with CMOS Z86K15 MCU

003h

D7 D6 D5 D4 D3 D2 D1 D0

1

FIFO Data

Figure 33. Endpoint 0 FIFO Register

SIE

Description

R/W

This is the Endpoint 0 FIFO data register.

004h

D7 D6 D5 D4 D3 D2 D1 D0

In_pkt _rdy

Force Stall

/Bit No Bit Description mC

4:2

IN MAXP

W

1

Force STALL R/W

0

In Packet Ready W

IN MAXP

000

Figure 34. IN CS Register

SIE

Description

R

Before setting in_pkt_rdy, the microcontroller writes the maximum packet

size to these bits. The default value = 8 Bytes.

W

The SIE writes this register, when it encounters a protocol violation, and

issues a STALL handshake to the current transfer. The microcontroller sets

this bit, when it receives a SET_FEATURE (ENDPOINT_STALL), and clears

it, when it receives a CLEAR_FEATURE (ENDPOINT_STALL).

R

After the microcontroller has Þlled the data, it sets this bit. It is cleared by

SIE upon successful transmission of data.

005h

D7 D6 D5 D4 D3 D2 D1 D0

FIFO Data

Figure 35. IN FIFO Register

Bit

mC

SIE

Description

7:0

W

R

The microcontroller writes IN data to this register.

DS97KEY0102

PRELIMINARY

23

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