ST90158 - GENERAL DESCRIPTION
Figure 1. ST90158 Block Diagram
ADDRESS
DATA
Port0
P0[7:0]
P1[7:0]
EPROM/
ROM/OTP
up to 64 Kbytes
ADDRESS
Port1
P0[7:0]
P1[7:0]
RAM
P2[6:0]
up to 2 Kbytes
P4[7:0]
P5[7:3], P5.1
P6[6:0]
Fully Prog.
I/Os
AS
WAIT
P7[7:0]
P8[7:0]
P9[7:4], P9[2:0]
256 bytes
NMI
R/W
Register File
DS
8/16 bits
CPU
STOUT
STIM
SPI
Interrupt
Management
INT0-7
SDI
SDO
2
ST9 CORE
I C/IM Bus
SCK
OSCIN
OSCOUT
RESET
INTCLK
CKAF
RCCU
A/D
EXTRG
AIN[7:0]
Converter
with analog
watchdog
WDIN
WDOUT
HW0SW1
WATCHDOG
MFT0
TX0CKIN
RX0CKIN
S0IN
T0OUTA
T0OUTB
T0INA
SCI0
SCI1
DCD0
S0OUT
CLK0OUT
RTS0
T0INB
T1OUTA
T1OUTB
T1INA
MFT1
TX1CKIN
RX1CKIN
S1IN
T1INB
T3OUTA
T3OUTB
T3INA
DCD1
MFT3
S1OUT
CLK1OUT
RTS1
T3INB
All alternate functions (Italic characters) are mapped on Port2 through Port9
8/199
9