ST10R272L STMicroelectronics, ST10R272L Datasheet - Page 11

• Manufacturer Part Number: ST10R272L
• Description: 16-BIT Romless MCU WITH MAC UNIT
• Manufacturer: STMicroelectronics

Specifications of ST10R272L

• Cpu Frequency: 0 to 50 MHz
• Power: 3.3 Volt +/-0.3V

2
ST10R272L architecture combines the advantages of both RISC and CISC processors with
an advanced peripheral subsystem. The following block diagram overviews the different on-
chip components and the internal bus structure.
FUNCTIONAL DESCRIPTION
XTAL2
XTAL1
EA, ALE, RD,
WR/WRL,
READY, NMI,
RSTIN,
RSTOUT
dedicated
OSC
pins
I/O
CLKOUT,
BHE/WRH, RxD0,
TxD0, T2IN, T3IN,
T4IN,
T3OUT,
T6OUT
DPRAM
1KByte
PLL
ASC
Figure 2 Block diagram
CS(4:0)
Port 3
15-bit
Port 6
WDT
HOLD
BREQ
HLDA
T3EUD,
8-bit
CAPIN,
I/O
GPT1/2
I/O
A(23:16),
SSPCLK,
SSPDAT,
SSPCE(1:0)
I
T2EUD,
T4EUD, T5IN,
T6IN, T5EUD,
T6EUD
Interrupt Controller
ST10 CORE
Port 4
Port 5
8-bit
6-bit
ST10R272L - FUNCTIONAL DESCRIPTION
& PEC
MAC
XSSP
4-bit
PWM
A(15:0)
2x8-bit
POUT3
Port 1
Port 7
I/O
4-bit
I/O
AD(15:8), AD(7:0)
A(15:8), AD(7:0)
D(15:8), D(7:0)
I/O, D(7:0)
EXIN(3:0)
2x8-bit
Port 0
Port 2
I/O
4-bit
I/O
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