SST89E58RD2-40-I-NJE Microchip Technology, SST89E58RD2-40-I-NJE Datasheet - Page 52

• Manufacturer Part Number: SST89E58RD2-40-I-NJE
• Description: 4.5 To 5.5V FlashFlex 8-bit 8051 Microcontroller 44 PLCC TUBE
• Manufacturer: Microchip Technology
• Series: FlashFlex®r

Specifications of SST89E58RD2-40-I-NJE

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 36
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 8K x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-LCC (J-Lead)
• Processor Series: FlashFlex51
• Core: C51
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Data Sheet
8.3.1 Capture Mode
Capture mode is used to capture the PCA timer/counter
value into a module’s capture registers (CCAPnH and
CCAPnL). The capture will occur on a positive edge, nega-
tive edge, or both on the corresponding module’s pin. To
use one of the PCA modules in the capture mode, either
one or both the CCAPM bits CAPN and CAPP for that
module must be set. When a valid transition occurs on the
CEX pin corresponding to the module used, the PCA hard-
ware loads the 16-bit value of the PCA counter register (CH
©2008 Silicon Storage Technology, Inc.
FIGURE
CEXn
CCAPMn
n=0 to 4
CCON
8-2: PCA Capture Mode
CF
ECOMn CAPPn CAPNn MATn
CR
0
CCF4
CCF3
SST89E54RD2A/RDA / SST89E58RD2A/RDA
0
52
Capture
CCF2
TOGn
and CL) into the module’s capture registers (CCAPnL and
CCAPnH). If the CCFn bit for the module in the CCON
SFR and the ECCFn bit in the CCAPMn SFR are set, then
an interrupt will be generated. In the interrupt service rou-
tine, the 16-bit capture value must be saved in RAM before
the next event capture occurs. If a subsequent capture
occurred, the original capture values would be lost. After
flag event flag has been set by hardware, the user must
clear the flag in software. (See Figure 8-2)
0
PWMn ECCFn
CCF1
0
CCF0
CCAPnH
PCA Timer/Counter
CH
FlashFlex MCU
CCAPnL
S71339-02-000
PCA Interrupt
CL
1339 F24.0
02/08