MSC8144ADS Freescale, MSC8144ADS Datasheet - Page 48

• Manufacturer Part Number: MSC8144ADS
• Manufacturer: Freescale

Specifications of MSC8144ADS

• Lead Free Status / RoHS Status: Compliant

ADS Functional Description
All BCSR registers (up to 32) are 8-bit joined in two groups: control registers with read/write
access and only read status registers. Control registers obtain their default value during
Power-on-Reset. The CNFLOCK bit in BCSR7[7] enables saving of settings values until the
ADS powers down.
5.14.1 BCSR0 Board Control Register 0
The BCSR0 serves as a 8-bit control register on the board The BCSR0 may be read or written at
any time. BCSR0 defaults are attributed at the time of Power-On-Reset. BCSR0 fields are
described below in Table 5-9:
5-24
BIT
0
1
2
3
4
5
6
7
E1T1TDM1EN
E1T1TDM2EN
MNEMONIC
CODECEN
RS232EN
BOOTWP
SIGNAL0
SIGNAL1
FLWP
Table 5-9. BCSR0 Peripheral’s Control 1 (Offset 0)
CODEC Enable. The CODEC is functional when the CODECEN is
asserted (low), otherwise when high the CODEC enters in
power-down mode.
E1T1 Framer 1 Enable. Upon activation (low), the E1T1 Framer 1 is
enabled. When negated (high), the Framers enters standby mode and
isolates electrically from TDM bus.
E1T1 Framer 2 Enable. Upon activation (low), the E1T1 Framer 2 is
enabled. When negated (high), the Framers enters standby mode and
isolates electrically from TDM bus.
MSC8144 UART Port Transceiver Enable. Upon activation (low),
the RS232 Transceiver, using the UART port of the MSC8144, is
enabled. When negated (high), the RS232 Transceiver enters
standby mode.
BOOT I2C EEPROM Protect. When asserted (low) Host BOOT
EEPROM write operations are disabled, when negated (high) the
EEPROM functions normally,.
Flash Protect. Upon activation (low) the Flash is write-protected.
When high the Flash functions normally.
Signal LED 0. A dedicated
is low or when MSC8144 GPIO[0:3] = 4’b0101 code is present. The
LED is unlit when in its inactive (default) state (high). During the
MSC8144 Reset Configuration sequence the LED indicates the
SRESET assertion. The user may utilize the LED for s/w Slave
signalling purposes.
Signal LED 1. A dedicated
low or when MSC8144 GPIO[0:3] = 4’b1010 code is present. The LED
is unlit when in its inactive (default) state (high). During the Reset
Configuration sequence the LED indicates the HRESET assertion.
MSC8144ADS MSC8144, Rev. 0
Green
Red
Function
LED is illuminated when SIGNAL1 is
LED is illuminated when SIGNAL0
PRST
DEF
Freescale Semiconductor
on
0
0
0
0
0
0
1
1
ATT.
R,W
R,W
R,W
R,W
R,W
R,W
R,W
R,W