isp1109 NXP Semiconductors, isp1109 Datasheet - Page 18

• Manufacturer Part Number: isp1109
• Description: Universal Serial Bus Transceiver With Carkit Support
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 13:
9397 750 13355
Product data sheet
Mode
USB mode
Transparent
general purpose
buffer mode
Transparent Audio
mode (stereo)
Transparent Audio
mode (mono)
Transparent UART
mode (mode 1)
Transparent UART
mode (mode 2)
Summary of device operating modes
8.4.2 Transparent audio mode
8.4.3 Transparent general-purpose buffer mode
Bit
UART_EN UART_PIN_SEL AUDIO_EN AUDIO_MONO TRANSP_EN
0
0
0
0
1
1
The ISP1109 is in transparent UART mode, if bit UART_EN of the Mode Control 1 register
is set.
In transparent audio mode, the ISP1109 will disable its DP and DM driver. The carkit
interrupt detector is enabled. The built-in analog switches will be tuned based on the
selection of carkit audio mode:
The ISP1109 is in transparent audio mode, if bit UART_EN of the Mode Control 1 register
is cleared, and bit AUDIO_EN of the Audio Control register is set.
In transparent general-purpose buffer mode, the DAT/VP and SE0/VM pins are connected
to the DP and DM pins, respectively. Using bits TRANSP_BDIR1 and TRANSP_BDIR0 of
the Mode Control 2 register as specified in
transfer. The ISP1109 is in transparent general-purpose buffer mode if bit UART_EN = 0,
bit AUDIO_EN = 0, and bit TRANSP_EN = 1.
Table 13
•
•
•
If UART_PIN_SEL = 1:
– For the TxD signal: From SE0/VM (V
– For the RxD signal: From DP (REG3V3 level) to DAT/VP (REG3V3 level).
Stereo mode: SPKR_L on DM and SPKR_R on DP
Mono and MIC mode: SPKR_L on DM and MIC on DP.
X
X
X
X
0
1
provides a summary of the device operating modes.
Rev. 01 — 14 July 2005
0
0
1
1
X
X
X
X
0
1
X
X
Table
CC(I/O)
14, you can control the direction of data
level) to DM (REG3V3 level)
USB transceiver with carkit support
0
1
X
X
X
X
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Description
USB ATX enabled
USB ATX disabled.
See
USB ATX disabled.
USB ATX disabled.
USB ATX disabled.
USB ATX disabled.
SE0/VM
DAT/VP
SPKR_L
SPKR_R
SPKR_L
MIC
UART_TXD
UART_RXD
SE0/VM
DAT/VP
Table 14
ISP1109
DP
DP
DP
DM
DM
DM
DM
DP
18 of 59
DM
DP