P83C366BDA datasheet(21/92 Pages) PHILIPS

21 / 92 page

1999 Mar 10

Philips Semiconductors

Product speciﬁcation

Microcontrollers for PAL/SECAM TV

with OSD and VST

P8xCx66 family

10.5

Data Shift Register (S1DAT)

S1DAT contains the serial data to be transmitted or data that has just been received. Bit 7 is transmitted or received first.

Table 13 Data Shift Register (SFR address DAH)

10.6

Slave Address Register (S1ADR)

This 8-bit register may be loaded with the 7-bit slave address to which the controller will respond when programmed as

slave receiver/transmitter. The LSB bit (GC) is used to determine whether the general CALL address is recognized.

Table 14 Slave Address Register (SFR address DBH)

Table 15 Description of S1ADR bits

10.7

Internal Status Register (S1IST)

S1IST is an 8-bit read-only Special Function Register and will exist in the design but is not mapped for the user.

Table 16 Internal Status Register (SFR address DCH)

10.8

I2C-bus Control Register (I2CCON)

Table 17 I2C-bus Control Register (SFR address 86H)

Table 18 Description of I2CCON bits

76543210

SLA6

SLA5

SLA4

SLA3

SLA2

SLA1

SLA0

BIT

SYMBOL

DESCRIPTION

7 to 1

SLA6 to

SLA0

Own slave address.

When GC = 0, the general CALL address is not recognized. When GC = 1, the general

CALL address is recognized.

76543210

MST

TRX

ARL

SEL

AD0

SHRA

76543210

−−−−−

I2CE

−−

BIT

SYMBOL

DESCRIPTION

7to3

−

These 5 bits are not used.

2I2CE

I2C-bus enable. This bit selects the functions of pins 39 and 40 for the SDIP42 package

(or pins 64 and 65 for the PLCC68 package). When I2CE = 1, the alternative functions

SCL and SDA are selected. When I2CE = 0, these pins act as port lines P1.5 and P1.6.

1to0

−

These bits are not used.

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