www.ti.com
Control Registers
1601
SPNU563A–March 2018
Submit Documentation Feedback
Copyright © 2018, Texas Instruments Incorporated
Multi-Buffered Serial Peripheral Interface Module (MibSPI) with Parallel Pin
Option (MibSPIP)
Table 28-56. SPI Extended Prescale Register 2 (EXTENDED_PRESCALE2) Field Descriptions (continued)
Bit Field Value Description
10-0 EPRESCALE_FMT2 0-7FFh EPRESCALE_FMT2. Extended Prescale value for SPIFMT2. EPRESCALE_FMT2
determines the bit transfer rate of data format 2, if the SPI/MibSPI is the network
master. EPRESCALE_FMT2 is use to derive SPICLK from VCLK. If the SPI is
configured as slave, EPRESCALE_FMT2 does not need to be configured. These
EPRESCALE_FMT2(7:0) bits and PRESCALE2 bits of SPIFMT2 register will point to
the same physically implemented register. The clock rate for data format 2 can be
calculated as:
BR
Format2
= VCLK / (EPRESCALE_FMT2 + 1)
Write: This register field should be written if a SPICLK prescaler of more VCLK/256 is
required. This field provides a prescaler of up to VCLK/2048 for SPICLK. Writing to this
register field will also get reflected in SPIFMT2(15:8).
Read: Reading this field will reflect the PRESCALE value based on the last written
register field, that is, EXTENDED_PRESCALE2(10:0) or SPIFMT2(15:8) register.
Note: If Extended Prescaler is required, it should be ensured that
EXTENDED_PRESCALE2 register is programmed after SPIFMT2 register is
programmed. This is to ensure that the final SPICLK prescale value is controlled
by EXTENDED_PRESCALE2 register when a prescale of more 256 is intended on
SPICLK. Writing to PRESCALE2 field of SPIFMT2 will automatically clear
EPRESCALE_FMT2(10:8) bits to 000 so that the integrity of PRESCALE value is
maintained.
28.3.46 ECC Diagnostic Control Register (ECCDIAG_CTRL)
Figure 28-82. ECC Diagnostic Control Register (ECCDIAG_CTRL) [offset = 140h]
31 16
Reserved
R-0
15 4 3 0
Reserved ECCDIAG_EN
R-0 R/WP-Ah
LEGEND: R/W = Read/Write; R = Read only; WP = Write in privilege mode only; -n = value after reset
Table 28-57. ECC Diagnostic Control Register (ECCDIAG_CTRL) Field Descriptions
Bit Field Value Description
31-4 Reserved Reads return 0. Writes have no effect.
3-0 ECCDIAG_EN ECC Diagnostic mode Enable Key bits.
5h Write: Diagnostic mode is enabled. Writes and reads from ECC bits allowed from the ECC
address space.
All other
values
Write: Diagnostic mode is disabled. No writes to ECC bits are ignored.
Read: Returns 0.
To Next Page
Loading...
Need help?
General
