SST89E554RC-40-I-PIE Microchip Technology, SST89E554RC-40-I-PIE Datasheet - Page 54
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SST89E554RC-40-I-PIE
Manufacturer Part Number
SST89E554RC-40-I-PIE
Description
8-bit Microcontrollers - MCU 32KB+8KB 40ns
Manufacturer
Microchip Technology
Datasheet
1.SST89E564RD-40-I-NJE.pdf
(90 pages)
Specifications of SST89E554RC-40-I-PIE
Rohs
yes
Core
8051
Data Bus Width
8 bit
Maximum Clock Frequency
40 MHz
Program Memory Size
32 KB
Data Ram Size
1 KB
On-chip Adc
No
Operating Supply Voltage
4.5 V to 5.5 V
Package / Case
PDIP-40
Mounting Style
Through Hole
Data Rom Size
128 B
Interface Type
SPI, UART
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
32
Number Of Timers
16 bit
Processor Series
FlashFlex
Program Memory Type
Flash
Supply Voltage - Max
5.5 V
Supply Voltage - Min
4.5 V
EOL 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
©2007 Silicon Storage Technology, Inc.
FIGURE
CEXn
CCAPMn
n=0 to 4
CCON
8-2: PCA C
CF
APTURE
ECOMn CAPPn CAPNn MATn
CR
0
M
ODE
CCF4
CCF3
0
Capture
54
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
SST89E564RD / SST89V564RD
SST89E554RC / SST89V554RC
CCF0
CCAPnH
PCA Timer/Counter
CH
FlashFlex MCU
CCAPnL
S71207-08-EOL
1207 F35.1
PCA Interrupt
CL
1/07