isp1301 NXP Semiconductors, isp1301 Datasheet - Page 14

• Manufacturer Part Number: isp1301
• Description: Universal Serial Bus On-the-go Transceiver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 4:
[1]
ISP1301_3
Product data sheet
Mode
Direct I
Direct I
USB modes
USB suspend mode
USB functional mode
Transparent modes
Transparent
general-purpose buffer
mode
Transparent UART mode
Conditions:
a) bit SPD_SUSP_CTRL = 0 and pin SUSPEND = HIGH, or
b) bit SPD_SUSP_CTRL = 1 and bit SUSPEND_REG = 0.
2
2
C-bus mode
C-bus mode
Device operating modes
8.4.3 Summary tables
In UART mode, the OTG Controller is allowed to connect a UART to the DAT/VP and
SE0/VM pins of the ISP1301.
UART mode is entered by setting the UART_EN bit in the Mode Control 1 register. UART
mode is equivalent to one of transparent general purpose buffer mode (bit
TRANSP_BDIR1 = 1, bit TRANSP_BDIR0 = 0).
Table 5:
[1]
Pin
DP as output
DM as output
V
SCL
SDA
BUS
In USB suspend mode, the ISP1301 can drive the DP and DM lines, if the OE_N/INT_N input (when the
OE_INT_EN bit is not set) is LOW. In such a case, these outputs are driven as in USB functional modes,
but with the full-speed characteristics, irrespective of the value of the SPEED input pin or the SPEED_REG
bit.
USB
suspend
condition
X
X
X
1
0
X
X
USB suspend mode: I/O
[1]
Function
can be driven if pin OE_N/INT_N is active LOW, otherwise high-Z
can be driven if pin OE_N/INT_N is active LOW, otherwise high-Z
can be driven depending on bit VBUS_DRV
connected to SCL I/O of the I
connected to SDA I/O of the I
Bit
DAT
_SE0
X
X
1
X
X
1
X
Rev. 03 — 21 February 2006
Pin
OE_N/
INT_N
X
HIGH
X
X
X
X
X
Bit
TRANSP
_EN
0
1
1
0
0
1
X
2
2
C-bus slave
C-bus slave
Bit
UART
_ EN
X
X
X
0
0
0
1
Description
-
see
ATX is fully functional; see
ATX is not functional; see
DAT/VP
SE0/VM
ATX is not functional
Table 5
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
DP (RxD signal of UART)
DM (TxD signal of UART);
and
USB OTG transceiver
Table 7
ISP1301
Table 8
[1]
[1]
Table 6
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