HT66F40 datasheet(86/259 Pages) HOLTEK

86 / 259 page

HT66F20/HT66F30/HT66F40/HT66F50/HT66F60

HT66FU30/HT66FU40/HT66FU50/HT66FU60

Rev. 1.50

March 15, 2011

TM Input/Output Pin Control Registers

Selecting to have a TM input/output or whether to retain its other shared function, is implemented using one or two reg-

isters, with a single bit in each register corresponding to a TM input/output pin. Setting the bit high will setup the corre-

sponding pin as a TM input/output, if reset to zero the pin will retain its original other function.

Registers

Device

Bit

7654

TMPC0

HT66F20

¾¾

T1CP1

T1CP0

¾¾

T0CP0

TMPC0

HT66F30

T1ACP0

T1BCP1

T1BCP0

¾¾

T0CP1

T0CP0

TMPC0

HT66F40

HT66F50

HT66F60

T1ACP0

T1BCP2

T1BCP1

T1BCP0

¾¾

T0CP1

T0CP0

TMPC1

HT66F40

¾¾¾¾

T2CP1

T2CP0

TMPC1

HT66F50

HT66F60

¾¾

T3CP1

T3CP0

¾¾

T2CP1

T2CP0

TM Input/Output Pin Control Registers List

P A 0 / T P 0 _ 0

P A 0 O u t p u t F u n c t i o n

T 0 C P 0

P A 2 / T C K 0

O u t p u t

T C K I n p u t

T M 0

( C T M )

P C 0 O u t p u t F u n c t i o n

P C 0

O u t p u t

C a p t u r e I n p u t

P A 4 / T C K 1

T C K I n p u t

T M 1

( S T M )

P C 0 / T P 1 _ 1

T 1 C P 1

P A 1 O u t p u t F u n c t i o n

P A 1

P A 1 / T P 1 _ 0

T 1 C P 0

HT66F20 TM Function Pin Control Block Diagram

Note:

1. The I/O register data bits shown are used for TM output inversion control.

2. In the Capture Input Mode, the TM pin control register must never enable more than one TM input.

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