MSC8144ADS Freescale, MSC8144ADS Datasheet - Page 47

• Manufacturer Part Number: MSC8144ADS
• Manufacturer: Freescale

Specifications of MSC8144ADS

• Lead Free Status / RoHS Status: Compliant

5.14 Board Control and Status Registers (BCSRs)
The BCSR, an 8-bit wide read / write register file, controls or monitors most of the ADS
hardware options. The BCSRs may be accessed from the Host Local Bus or via FPGA internal
JTAG controller. The BCSR includes up to 16 registers.
BCSR registers are duplicated numerous times within a CS1 region. This is due to the CS region
4 Kbyte minimum block size and the fact that only address lines A[28–31] are decoded for
register selection by the BCSR. BCSR is implemented on a FPGA device that provides register
and logic functions over some Board signals.
The BCSR controls or monitors the following functions:
Sections of the BCSR slice control registers generally have low active notations. This means that
a bit function will be enabled while the bit is zero. When a bit is set to high (or 1) a related
function is disabled. The most significant bit is bit 0.
Freescale Semiconductor
„ Programmed Power-on-Reset for the board.
„ MSC8144 Hardware Reset Configuration signals stored in BCSR registers are available
„ Hard- Soft- Reset and NMI (IRQ0) push buttons debounce function for the MSC8144.
„ Hardware Configuration for the GETH transceiver: SGMII-to-Copper or
„ Enable/Disable to:
„ BCSR provides h/w write protection for FLASH and Host I2C EEPROM.
„ Logic to prevent signals contention.
„ Two LEDs (LD3, LD4) provide software and board reset state signaling.
„ Status registers BCSR10, BCSR11 and BCSR16-20 include:
for modification from the Host Local Bus or JTAG.
RGMII-to-Copper setting.
— SPI CS decoding.
— RS232 Transceiver.
— SHMOO function.
— LED off.
— ADS Setting
— BCSR Revision code
— Firmware date
• Internal JTAG controller.
• Programmable JTAG multiplexing
• TDM reference clock/sync generation.
• Identification and Control signals to PTMC expansion Card
• FA functions control.
MSC8144ADS MSC8144, Rev. 0
Board Control and Status Registers (BCSRs)
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