SST89V58RD2-33-C-TQJE Microchip Technology, SST89V58RD2-33-C-TQJE Datasheet - Page 58

• Manufacturer Part Number: SST89V58RD2-33-C-TQJE
• Description: IC MCU 8BIT 40KB FLASH 44TQFP
• Manufacturer: Microchip Technology
• Series: FlashFlex®r

Specifications of SST89V58RD2-33-C-TQJE

• Program Memory Type: FLASH
• Program Memory Size: 32KB (32K x 8)
• Package / Case: 44-TQFP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 36
• Eeprom Size: 8K x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Processor Series: SST89xxxRD
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI, UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Data Sheet
11.0 INTERRUPTS
11.1 Interrupt Priority and Polling Sequence
The device supports eight interrupt sources under a four level priority scheme. Table 11-1 summarizes the polling
sequence of the supported interrupts. Note that the SPI serial interface and the UART share the same interrupt
vector. (See Figure 11-1)
TABLE 11-1: Interrupt Polling Sequence
©2007 Silicon Storage Technology, Inc.
Description
Ext. Int0
Brown-out
T0
Ext. Int1
T1
PCA
Ext. Int. 2
Ext. Int. 3
UART/SPI
T2
Interrupt Flag
TF2, EXF2
TI/RI/SPIF
CF/CCFn
TF0
TF1
IE0
IE1
IE2
IE3
-
Address
Vector
004BH
000BH
001BH
003BH
002BH
0003H
0013H
0033H
0043H
0023H
Interrupt
Enable
EBO
EX0
ET0
EX1
ET1
EX2
EX3
ET2
EC
ES
58
SST89V54RD2/RD / SST89V58RD2/RD
Interrupt
Priority
PBO/H
PX0/H
PX1/H
PX2/H
PX3/H
PT0/H
PT1/H
PPCH
PT2/H
PS/H
1(highest)
Service
Priority
10
2
4
6
7
8
9
3
5
FlashFlex MCU
S71255-10-000
Power-down
Wake-Up
yes
yes
no
no
no
no
no
no
no
no
T11-1.0 1255
12/07