Rainbow-electronics AT89C5122 Bedienungsanleitung PDF herunterladen (Seite 164)

164

AT8xC5122/23

4202E–SCR–06/06

Reset Value = X0XX 0XXXb (Bit addressable)

Reset Value = X000 0000b (Bit addressable)

Table 100. Interrupt Enable Register 1 - IEN1 (B1h) for AT83C5123

76543210

- EUSB - - ESCI -

Bit

Number

Bit

Mnemonic Description

Reserved

The value read from this bit is indeterminate. Do not change this bit.

6EUSB

USB Interrupt Enable bit

Cleared to disable USB interrupt .

Set to enable USB interrupt.

5 - 4 -

Reserved

The value read from this bit is indeterminate. Do not change these bits.

3 ESCI

SCI interrupt Enable bit

Cleared to disable SCIinterrupt .

Set to enable SCI interrupt.

Reserved

The value read from this bit is indeterminate. Do not change this bit.

Reserved

The value read from this bit is indeterminate. Do not change this bit.

Reserved

The value read from this bit is indeterminate. Do not change this bit.

Table 101. Interrupt Priority Low Register 0 - IPL0 (B8h)

76543210

- - - PSL PT1L PX1L PT0L PX0L

Bit

Number

Bit

Mnemonic Description

7 - 5 -

Reserved

The value read from this bit is indeterminate. Do not change these bits.

4 PSL

Serial port Priority bit

Refer to PSH for priority level.

3PT1L

Timer 1 overflow interrupt Priority bit

Refer to PT1H for priority level.

2 PX1L

External interrupt 1 Priority bit

Refer to PX1H for priority level.

1PT0L

Timer 0 overflow interrupt Priority bit

Refer to PT0H for priority level.

0 PX0L

External interrupt 0 Priority bit

Refer to PX0H for priority level.

1 2 ... 159 160 161 162 163 164 165 166 167 168 169 ... 212 213

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