Motorola CPCI-6115 Manuale di Servizio Scaricare il pdf (Pagina 170)

Memory Maps and Addresses

CPCI-6200 Installation and Use (6806800J66C)

170

The prescaler provides the clock required by each of the four timers. The input clock to the

prescaler is 25 MHz. The default value is set for $E7 which gives a 1 MHz reference clock for a

25 MHz input clock source.

7.4.27.2 Control Registers

 Tick Timer 1 Control Register–0xF202_0010 (32 bits)

 Tick Timer 2 Control Register–0xF202_0020 (32 bits)

 Tick Timer 3 Control Register–0xF202_0030 (32 bits)

 Tick Timer 4 Control Register–0xF202_0040 (32 bits)

Table 7-54 Tick Timer Control Registers

Bit Field Operation Reset

31:11 RSVD R 0

10 INTS R 0

9CINT R/W0

8EN_INTR/W0

7OVF R 0

3RSVDR 0

2COVFR/W0

1COC R/W0

0ENC R/W0

Table 7-55 Tick Timer Control Field Definition

RSVD Reserved

INTS Interrupt Status

CINT Clear Interrupt

1 2 ... 165 166 167 168 169 170 171 172 173 174 175 ... 195 196

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Motorola CPCI-6115 Manuale di Servizio Pagina 170