5 register maps tab, Figure 10.register maps tab - cs8422, Cdb8422 – Cirrus Logic CDB8422 User Manual

Page 16

DS692DB2

CDB8422

2.3.5

Register Maps Tab

The Register Maps tabs provide low-level control of the CS8422, FPGA, and GPIO register settings. Reg-
ister values can be modified bit-wise or byte-wise. “Left-clicking” on a particular register accesses that reg-
ister and shows its contents at the bottom. The user can change the register contents by using the push-
buttons, by selecting a particular bit and typing in the new bit value, or by selecting the register in the map
and typing in a new hex value. The communication mode of the CS8422 (I²C or SPI) may be selected as
well. See

Section 2.5

for details on each register setting of the FPGA. If the CS8422’s configurable I²C

address bits (AD1 or AD0) are modified in the GPIO tab, the FPGA and CS8422 will be reset. The
CS8422’s AD2 bit is always set to zero (GPO2 has no pull-up resistor).

Figure 10. Register Maps Tab - CS8422