PXAS37KBA,512 NXP Semiconductors, PXAS37KBA,512 Datasheet - Page 23

IC XA MCU 16BIT 32K OTP 68-PLCC

PXAS37KBA,512

Manufacturer Part Number
PXAS37KBA,512
Description
IC XA MCU 16BIT 32K OTP 68-PLCC
Manufacturer
NXP Semiconductors
Series
XAr
Datasheet

Specifications of PXAS37KBA,512

Core Processor
XA
Core Size
16-Bit
Speed
30MHz
Connectivity
EBI/EMI, I²C, UART/USART
Peripherals
PWM, WDT
Number Of I /o
50
Program Memory Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
68-PLCC
Processor Series
PXAS3x
Core
80C51
Data Bus Width
16 bit
Data Ram Size
1 KB
Interface Type
I2C, UART
Maximum Clock Frequency
30 MHz
Number Of Programmable I/os
50
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
On-chip Adc
8 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
 Details
Other names
568-3536-5
935262377512
PXAS37KBA

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Philips Semiconductors
PCA Capture Mode
To use one of the PCA modules in the capture mode either one or
both of the CCAPM bits CAPN and CAPP for that module must be
set. The external CEX input for the module (on port 1) is sampled for
a transition. When a valid transition occurs the PCA hardware loads
the value of the PCA counter registers (CH 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. Refer to Figure 14.
16-bit Software Timer Mode
The PCA modules can be used as software timers by setting both
the ECOM and MAT bits in the modules CCAPMn register. The PCA
timer will be compared to the module’s capture registers and when a
match occurs an interrupt will occur if the CCFn (CCON SFR) and
the ECCFn (CCAPMn SFR) bits for the module are both set (see
Figure 15).
High Speed Output Mode
In this mode the CEX output (on port 4) associated with the PCA
module will toggle each time a match occurs between the PCA
2000 Dec 01
XA 16-bit microcontroller
32 K/1 K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage (2.7 V–5.5 V),
I
2
NOTE:
*User software should not write 1s to reserved bits. These bits may be used in future products to invoke new features. In that case, the reset or inactive value of the new bit will be 0,
and its active value will be 1. The value read from a reserved bit is indeterminate.
CCAPMn Address
Symbol
ECOMn
CAPPn
CAPNn
MATn
TOGn
PWMn
ECCFn
X
X
X
X
X
X
X
X
C, 2 UARTs, 16 MB address range
ECOMn
X
X
X
0
1
1
1
1
Not Bit Addressable
Bit:
Function
Not implemented, reserved for future use*.
Enable Comparator. ECOMn = 1 enables the comparator function.
Capture Positive, CAPPn = 1 enables positive edge capture.
Capture Negative, CAPNn = 1 enables negative edge capture.
Match. When MATn = 1, a match of the PCA counter with this module’s compare/capture register causes the CCFn bit
in CCON to be set, flagging an interrupt.
Toggle. When TOGn = 1, a match of the PCA counter with this module’s compare/capture register causes the CEXn
pin to toggle.
Pulse Width Modulation Mode. PWMn = 1 enables the CEXn pin to be used as a pulse width modulated output.
Enable CCF interrupt. Enables compare/capture flag CCFn in the CCON register to generate an interrupt.
CAPPn
0
1
0
1
0
0
0
0
7
CCAPM0
CCAPM1
CCAPM2
CCAPM3
CCAPM4
CAPNn
ECOMn
Figure 12. CCAPMn: PCA Modules Compare/Capture Registers
0
0
1
1
0
0
0
0
6
491H
492H
493H
494H
495H
Figure 13. PCA Module Modes (CCAPMn Register)
MATn
CAPPn
0
0
0
0
1
1
0
1
5
TOGn
CAPNn
X
0
0
0
0
0
1
0
4
PWMn
23
MATn
0
0
0
0
0
0
1
0
3
counter and the module’s capture registers. To activate this mode
the TOG, MAT, and ECOM bits in the module’s CCAPMn SFR must
be set (see Figure 16).
Pulse Width Modulator Mode
All of the PCA modules can be used as PWM outputs. Figure 17
shows the PWM function. The frequency of the output depends on
the source for the PCA timer. All of the modules will have the same
frequency of output because they all share the PCA timer. The duty
cycle of each module is independently variable using the module’s
capture register CCAPLn. When the value of the PCA CL SFR is
less than the value in the module’s CCAPLn SFR the output will be
low, when it is equal to or greater than the output will be high. When
CL overflows from FF to 00, CCAPLn is reloaded with the value in
CCAPHn. the allows updating the PWM without glitches. The PWM
and ECOM bits in the module’s CCAPMn register must be set to
enable the PWM mode.
ECCFn
TOGn
X
X
X
X
X
X
0
0
2
No operation
16-bit capture by a positive-edge trigger on CEXn
16-bit capture by a negative trigger on CEXn
16-bit capture by a transition on CEXn
16-bit Software Timer
16-bit High Speed Output
8-bit PWM
Watchdog Timer
PWMn
1
ECCFn
MODULE FUNCTION
0
Reset Value = 00H
Preliminary specification
XA-S3
SU01308