ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 22 -
Revision 2.4
4
BLOCK DIAGRAM
AHB Lite
Cortex M0
RAM
12KB
Embedded Flash
128KB
AHB to APB bridge
Flash Mem Controller
I2C
PWM Speaker Driver
SPI0/1
Timers/PWM
Debug interface
GPIO
CLK CTRL
50MHz Internal Osc.
32kHz RTC Osc
SDADC
UART0/1
SARADC
I2S
LDO 3.0V
LDO 1.5V
BOD
PDMA
POR
10kHz low power Osc
Peripherals with PDMA
RTC
WDT
12MHz Crystal Osc
Figure 4-1 ISD91200 Block Diagram