COP8SGE5_14 Datasheet, PDF(15/82 Page) Texas Instruments – COP8SG Family 8-Bit CMOS ROM Based and OTP Microcontrollers with 8k to 32k Memory, Two Comparators and USART

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COP8SGE5_14 Datasheet, PDF (15/82 Pages) Texas Instruments – COP8SG Family 8-Bit CMOS ROM Based and OTP Microcontrollers with 8k to 32k Memory, Two Comparators and USART

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COP8SGE5, COP8SGE7, COP8SGH5

COP8SGK5, COP8SGR5, COP8SGR7

SNOS516E â JANUARY 2000 â REVISED APRIL 2013

Since G6 is an input only pin and G7 is the dedicated CKO clock output pin (crystal clock option) or general

purpose input (R/C or external clock option), the associated bits in the data and configuration registers for G6

and G7 are used for special purpose functions as outlined below. Reading the G6 and G7 data bits will return

zeroes.

Each device will be placed in the HALT mode by writing a â1â to bit 7 of the Port G Data Register. Similarly the

device will be placed in the IDLE mode by writing a â1â to bit 6 of the Port G Data Register.

Writing a â1â to bit 6 of the Port G Configuration Register enables the MICROWIRE/PLUS to operate with the

alternate phase of the SK clock. The G7 configuration bit, if set high, enables the clock start up delay after HALT

when the R/C clock configuration is used.

Config. Reg.

CLKDLY

Alternate SK

HALT

IDLE

Data Reg.

Port G has the following alternate features:

G7 CKO Oscillator dedicated output or general purpose input

G6 SI (MICROWIRE Serial Data Input)

G5 SK (MICROWIRE Serial Clock)

G4 SO (MICROWIRE Serial Data Output)

G3 T1A (Timer T1 I/O)

G2 T1B (Timer T1 Capture Input)

G1 WDOUT WATCHDOG and/or CLock Monitor if WATCHDOG enabled, otherwise it is a general purpose

I/O

G0 INTR (External Interrupt Input)

Port C is an 8-bit I/O port. The 40-pin device does not have a full complement of Port C pins. The unavailable

pins are not terminated. A read operation on these unterminated pins will return unpredictable values. The 28 pin

device do not offer Port C. On this device, the associated Port C Data and Configuration registers should not be

used.

Port F is an 8-bit I/O port. The 28--pin device does not have a full complement of Port F pins. The unavailable

pins are not terminated. A read operation on these unterminated pins will return unpredictable values.

Port F1âF3 are used for Comparator 1. Port F4âF6 are used for Comparator 2.

The Port F has the following alternate features:

F6 COMP2OUT (Comparator 2 Output)

F5 COMP2+IN (Comparator 2 Positive Input)

F4 COMP2-IN (Comparator 2 Negative Input)

F3 COMP1OUT (Comparator 1 Output)

F2 COMP1+IN (Comparator 1 Positive Input)

F1 COMP1-IN (Comparator 1 Negative Input)

NOTE

For compatibility with existing software written for COP888xG devices and with existing

Mask ROM devices, a read of the Port I input pins (address xxD7) will return the same

data as reading the Port F input pins (address xx96). It is recommended new applications

which will go to production with the COP8SGx use the Port F addresses. Note that

compatible ROM devices contains the input only Port I instead of the bi-directional Port F.

Port D is an 8-bit output port that is preset high when RESET goes low. The user can tie two or more D port

outputs (except D2) together in order to get a higher drive.

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Product Folder Links: COP8SGE5 COP8SGE7 COP8SGH5 COP8SGK5 COP8SGR5 COP8SGR7

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