參數(shù)資料
型號(hào)： PCA5010H
廠商： NXP Semiconductors N.V.
英文描述： Pager baseband controller
中文描述： 傳呼機(jī)基帶控制器
文件頁(yè)數(shù)： 7/112頁(yè)
文件大?。?/td> 627K
代理商： PCA5010H
1998 Nov 02
7
Philips Semiconductors
Product specification
Pager baseband controller
PCA5010
P1.4
29
I/O
If the UART is disabled (ENS1 in S1CON.4 = 0) then P1.4 can be used as
general purpose P1 port pin. If the UART function is required, then a logic 1
must be written to P1.4. This I/O then becomes the TXD/clock line of the UART.
P1.4 has external interrupt INT6 (X6) assigned.
ground (connected to substrate)
supply voltage for the core logic and most peripheral drivers of the PCA5010
(see V
DDA
)
Address Latch Enable:
Output pulse for latching the low byte of the address
during an access to external memory.
Program Store Enable:
The read strobe to external program memory. When
the device is executing code from the external program memory, PSEN is
activated for each code byte fetch.
External Access Enable:
EA must be externally held LOW to enable the
device to fetch code from external program memory locations 0000H to 7FFFH.
If EA is held HIGH, the device executes from internal program memory unless
the program counter contains an address greater the 7FFFH (32 kbytes).
clock input for use as timing reference in external access mode and emulation
Programming voltage (12.5 V) for the OTP. Is connected to V
SS
in the
application.
If the I
2
C-bus is disabled (ENS1 in S1CON.6 = 0) then P1.6 can be used as
general purpose P1 port pin. If the I
2
C-bus function is required, then a logic 1
must be written to P1.6. This I/O then becomes the clock line of the I
2
C-bus.
P1.6 is equipped with an open-drain output buffer. The pin has no clamp diode
to V
DD
.
If the I
2
C-bus is disabled (ENS1 in S1CON.6 = 0) then P1.7 can be used as
general purpose P1 port pin. If the I
2
C-bus function is required, then a logic 1
must be written to P1.7. This I/O then becomes the data line of the I
2
C-bus.
P1.7 is equipped with an open-drain output buffer. The pin has no clamp diode
to V
DD
.
output from the current source oscillator amplifier
input to the inverting oscillator amplifier and time reference for pager decoder,
real-time clock and timers
Supply terminal from battery. Is used for supplying parts of the chip that need to
operate at all times.
Supply voltage output of the DC/DC converter. An external capacitor is
required.
Current input for the DC/DC converter. The booster inductor needs to be
connected externally.
ground (connected to substrate) OTP
Schmitt trigger reset input for the PCA5010. External R and C need to be
connected to the battery supply. All internal storage elements (except
microcontroller RAM) are initialized when this input is activated.
V
SS
V
DD
30
31
S
S
ALE
32
I/O
PSEN
33
I/O
EA
34
I/O
TCLK
V
PP
35
36
I
S
P1.6
37
I/O
P1.7
38
I/O
XTL2
XTL1
39
40
O
I
V
BAT
41
S
V
DD(DC)
42
O
VIND
43
I
V
SS(DC)
RESETIN
44
45
S
I
SYMBOL
PIN
TYPE
DESCRIPTION
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