ucb1200 NXP Semiconductors, ucb1200 Datasheet - Page 50

• Manufacturer Part Number: ucb1200
• Description: Advanced Modem/audio Analog Front-end
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1998 Jul 22
5
6
7
8 and 9
11
12
13
Address 10: ADC control register
0
1
2 to 4
5
7
15
Address 11: ADC data register
5 to 14
15
Address 12: ID register
0 to 5
6 to 11
12 to 15 R
Address 13: MODE register; note 1
0
1
2 to 5
Advanced modem/audio analog front-end
BIT
R/W
R/W
R/W
R/W
R/W
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R/W
R/W
R/W
MODE
TSPX_GND
TSMY_GND
TSPY_GND
TSC_MODE[n]
TSC_BIAS_ENA
TSPX_LOW
TSMX_LOW
ADC_SYNC_ENA
VREFBYP_CON
ADC_INPUT[n]
EXT_REF_ENA
ADC_START
ADC_ENA
ADC_DATA[n]
ADC_DAT_VAL
VERSION[n]
DEVICE[n]
SUPPLIER[n]
AUD_TEST
TEL_TEST
PROD_TEST_MODE
SYMBOL
If ‘1’, the TSPX pin is grounded.
If ‘1’, the TSMY pin is grounded.
If ‘1’, the TSPY pin is grounded.
Touch screen operation mode:
If ‘1’, the touch screen bias circuit is activated.
This bit returns the inverted state of the TSPX pin, ‘0’ is a high
voltage (pen up), ‘1’ is a low voltage (pen down).
This bit returns the inverted state of the TSMX pin, ‘0’ is a high
voltage (pen up), ‘1’ is a low voltage (pen down).
If ‘1’, the ADC sync mode is activated.
If ‘1’, the internal reference voltage is connected to VREFBYP
(pin 16).
ADC input select:
If ‘1’, an external reference voltage has to be applied to
VREFBYP.
A ‘0’ to ‘1’ transition starts the ADC conversion sequence.
If ‘1’, the ADC circuit is activated.
Returns the ADC result
Returns '0' if an ADC conversion is in progress. Returns '1' if
the ADC conversion is completed and the ADC data is stored
in the ADC_DATA[n] register.
Returns 000100 for all the UCB1200 circuits meeting this
specification
Returns 000000 for all the UCB1200 circuits meeting this
specification
Returns 0001 for all the UCB1200 circuits meeting this
specification
If ‘1’, the analog audio test mode is activated.
If ‘1’, the analog telecom test mode is activated.
These bits select the built-in production test modes.
00: interrupt mode
01: pressure measurement mode
1x: position measurement mode.
000: TSPX
001: TSMX
010: TSPY
011: TSMY
50
100: AD0
101: AD1
110: AD2
110: AD3
REMARK
(2)
(2)
(2)
Product specification
UCB1200
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RESET