ADAS1000-4BSTZ datasheet(63/80 Pages) AD

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Data Sheet

ADAS1000-3/ADAS1000-4

Table 33. GPIO Control Register (GPIOCTL) Address 0x06, Reset Value = 0x000000

REE

Default

Bit

Name

Function

[23:19]

Reserved

Reserved, set to 0

R/W

SPIFW

Frame secondary SPI words with chip select

0 (default) =

MCSEE

asserted for entire frame

1 =

MCSEE

asserted for individual word

R/W

Reserved

Reserved, set to 0

R/W

SPIEN

Secondary SPI enable; SPI interface providing ECG data at 128 kHz data rate for external digital pace

algorithm detection, uses GPIO0, GPIO1, GPIO2 pins

0 (default) = disabled

1 = enabled; the individual control bits for GPIO0, GPIO1, GPIO2 are ignored; GPIO3 is not affected

by SPIEN

R/W

[15:14]

G3CTL [1:0]

State of GPIO3 pin

00 (default) = high impedance

01 = input

10 = output

11 = open drain

R/W

G3OUT

Output value to be written to GPIO3 when the pin is configured as an output or open drain

0 (default) = low value

1 = high value

G3IN

Read only; input value read from GPIO3 when the pin is configured as an input

0 (default) = low value

1 = high value

R/W

[11:10]

G2CTL [1:0]

State of GPIO2 pin

00 (default) = high impedance

01 = input

10 = output

11 = open drain

R/W

G2OUT

Output value to be written to GPIO2 when the pin is configured as an output or open drain

0 (default) = low value

1 = high value

G2IN

Read only Input value read from GPIO2 when the pin is configured as an input

0 (default) = low value

1 = high value

R/W

[7:6]

G1CTL [1:0]

State of GPIO1 pin

00 (default) = high impedance

01 = input

10 = output

11 = open drain

R/W

G1OUT

Output value to be written to GPIO1 when the pin is configured as an output or open drain

0 (default) = low value

1 = high value

G1IN

Read only; input value read from GPIO1 when the pin is configured as an input

0 (default) = low value

1 = high value

R/W

[3:2]

G0CTL [1:0]

State of the GPIO0 pin

00 (default) = high impedance

01 = input

10 = output

11 = open drain

R/W

G0OUT

Output value to be written to GPIO0 when the pin is configured as an output or open drain

0 (default) = low value

1 = high value

G0IN

(Read only) input value read from GPIO0 when the pin is configured as an input

0 (default) = low value

1 = high value

Rev. B | Page 63 of 80

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