1999 Feb 02

18

Philips Semiconductors

Product specification

8-bit microcontroller with 4.5 kbytes OTP

memory and 32 kHz real-time clock

PCD3745A

14 OTP PROGRAMMING

The programming of the PCD3745A OTP is based on the OM4260 programmer (Ceibo MP-51) which is available from

Philips. The OM4260 works in conjunction with various adapters and supports the package types listed in Table 12.

The low voltage OTP program memory used is of Anti-Fuse-PROM type and cannot be erased after programming. Thus,

the complete OTP memory cannot be tested by the factory, but only partially via a special test array. The average

expected yield is 97%.

Detailed information on the OTP programming is available in the

“PCD3755x Application Note”, available from Philips

Sales offices.

Table 12 OTP programming overview

Note

1. As the OM5037 is only a socket converter, the OM5007 is also needed to program the PCD3745A in the LQFP32

package.

15 SUMMARY OF DERIVATIVE REGISTERS

Table 13 Register map

DEVICE

PHILIPS TYPE NUMBER

CEIBO TYPE NUMBER

SUPPORTED

PACKAGE

Ceibo MP-51

OM4260

MP-51 programmer base

−

PCD3745A

OM5007

adapter DIP

DIP28

OM5030

adapter SO

SO28

OM5037; note 1

socket converter LQFP32

LQFP32

ADDRESS

(HEX)

REGISTER

76543210

00 to 1F

not used

−−−−−−−−

20

Clock Control Register (CLCR)

SITS

TST2

TST1

ERCO

RUN

ITS

CIF

ECI

21

Frequency Adjustment

Register (FAR)

FAR7

FAR6

FAR5

FAR4

FAR3

FAR2

FAR1

FAR0

22 to 3F

not used

−−−−−−−−

40

Peripheral Counter Control

Register (PCCR)

EC1

EC1I

0

C1F

EC2

EC2I

0

C2F

41

Counter 1 Low Byte (C1LB)

C1LB7

C1LB6

C1LB5

C1LB4

C1LB3

C1LB2

C1LB1

C1LB0

42

Counter 1 High Byte (C1HB)

C1HB7 C1HB6 C1HB5 C1HB4 C1HB3 C1HB2 C1HB1 C1HB0

43

Counter 2 Low Byte (C2LB)

C2LB7

C2LB6

C2LB5

C2LB4

C2LB3

C2LB2

C2LB1

C2LB0

44

Counter 2 High Byte (C2HB)

C2HB

C2HB

C2HB

C2HB

C2HB

C2HB

C2HB

C2HB

45 to FF

not used

−−−−−−−−