EM77950 datasheet(36/102 Pages) EMC

36 / 102 page

EM77950

BB Controller

•

Product Specification (V1.0) 10.09.2007

(This specification is subject to change without further notice)

7.1.9 Table Look-up Pointer – LTBL (0x0B), and HTBL (0x0C)

The maximum length of a table is 64K, and can be accessed through registers LTBL

and HTBL. HTBL is the high byte of the pointer, whereas LTBL is the low byte.

7.1.10

Stack Pointer – STKPTR (0x0D)

only register.

7.1.11

Repeat Counter – RPTC (0x0E)

The RE register is used to set how many times the “RPT” instruction is going to read the

table.

7.1.12

Prescaler Counter – PRC (0x0F)

Prescaler counter for TCC.

7.1.13

Real Time Clock Counter – RTCC (0x10)

TCC counter.

7.1.14

Interrupt Flag Register – INTF (0x11)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

ADIF

RBFIF

PWM1IF

PWM0IF

EINT1F

EINT0F

TCCOF

FRCOF

Bit 0 (FRCOF):

FRC Overflow interrupt. Set as the contents of the FRC counter

change from 0xFFFF to 0x0000, reset by software.

Bit 1 (TCCOF):

TCC Overflow interrupt. Set as the contents of the TCC counter

change from 0xFF to 0x00, reset by software.

Bits 2 ~ 3 (EINT0F & EINTIF):

External input pin interrupt flag. Interrupt occurs at a

defined edge of the external input pin, reset by software.

Bits 4 ~ 5 (PWM0IF & PWM1IF)

: PWM interrupt flag. Interrupt occurs when TMRX is

equal to PRDX, reset by software.

Bit 6 (RBFIF):

SPI receiving buffer full Interrupt flag. Interrupt occurs when an 8-bit

data is received, reset by software.

Bit 7 (ADIF):

ADC conversion complete interrupt flag.

Each bit can function independently regardless whether its related

interrupt mask bit is enabled or not.

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