DS_6613_018

78M6613 Data Sheet

Rev 2

13

2.4 CE/MPU Communication

Figure 6 shows the functional relationship between CE and MPU. The CE is controlled by the MPU via

shared registers in the I/O RAM and by registers in the CE DRAM. The CE outputs two interrupt signals

to the MPU to indicate when the CE is actively processing data and when the CE is updating data to the

output region of the CE DRAM.

MPU

CE

INTERRUPTS

DIO

SERIAL

(UART)

SAMPLES

ADC

CE_BUSY

XFER_BUSY

Mux Ctrl.

DATA

CONTROL

I/O RAM (CONFIGURATION RAM)

Figure 6: MPU/CE Communication