Panasonic MN101C77C User Manual

Page 445

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Chapter 14 Automatic Transfer Controller

Control Registers

XIV - 7

13

Figure 14-2-3 ATC1 Transfer Data Counter (AT1TRC : x'03FD2', R/W)

„

ATC1 Control Register 1 (AT1CNT1)

AT1IR2

AT1IR1 AT1IR0

(At reset : - - -

x x x x x

)

-

AT1IR3

AT1IR3 AT1IR2 AT1IR1

External interrupt 0

External interrupt 1

Serial interface 0 interrupt

Reserved

Reserved

Serial interface 1 interrupt

(Disable)
Serial interface 3 interrupt

A/D interrupt

Timer 7 capture trigger

External interrupt 2
External interrupt 3

Serial interface 4 interrupt

Timer 1 interrupt

Timer 7 interrupt

Software initialization

AT1IR0

ATC1 trigger
factor settings

-

-

BTSTP

BTSTP

Burst transfer stop enable

0

1

Burst transfer stop disable

Burst transfer stop enable

(Transfer stops when external interrupt 0
occurs.)

AT1CNT1

0

1

0

1

0

1

0

1

0

1
0

1
0
1

0

1
0
1
0

1

0

1

0

1

0

0

1

1

0

1

0

1

2

4

5

6

7

3

Figure 14-2-2 ATC1 Control Register 1 (AT1CNT1 : x'03FD1', R/W)

„

ATC1 Transfer Counter (AT1TRC)

AT1TRC

AT1TRC7

AT1TRC2 AT1TRC1 AT1TRC0

(At reset :

x x x x x x x x

)

AT1TRC6 AT1TRC5 AT1TRC4 AT1TRC3

AT1TRC7 to 0 ATC1 Transfer Data Count Setting

· For transfer modes 0 to D, set this register to the number of
ATC activations. The register decrements by 1 after every
ATC1 activation. When the count reaches x'00', an ATC1
interrupt occurs and the transfer ends.

· For transfer modes E and F, set this register to number of burst
transfers. The register decrements by 1 every time one byte
is transfered. When the count reaches x'00', an ATC1
interrupt occurs and the transfer ends.

0

1

2

4

5

6

7

3

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