Led/Cpu Module, 0670-00-0650-03, -04; Hardware Overview; Software Overview - Datascope Accutorr Plus Service Manual

2.2.1 LED/CPU Module - 0670-00-0650-03, -04
The 0670-00-0650-03 is specified to be used with the Accutorr Plus NIBP with Trend
Screen and SpO . The 0670-00-0650-04 is specified to be used with Accutorr Plus
2
NIBP and the Accutorr Plus NIBP with Trend Screen.
Systolic MAP
7 7 7 3 2 1 0
Room Bed
Diastolic
Number Number
6 6 6 3 2 1 0
Pulse Rate Temp/Time/Interval
5 5 5 3 2 1 0
SPO2
SPO2
+15V
-15V
+5V
10
4 4
4
SPO2_TXD
pin
J7
SPO2_RXD
SPO2*
SPO2RST*
Over
Pressure
Latch
D A
U15
NIBP/POWER
Disable
OVPR_DET*
5
Valve &
GAIN0
Pump
Control
GAIN1
3 4
U13,U14,U16
pin
CLEAR*
J1
SER_DI
SER_DO
SER_CLK SPCLK
SCP
SERIAL CLOCK
PED CONTROL U13 SPCLKEN*
68302
NEO
Microcontroller
CLK
Oscilla t or
PART OF J1
1 6 . 0 0 Mhz
TxD3
U2
Temperature
Probe
PRED*
20
TYMP*
pin
TEMP_RxD
J4
TEMP_TxD
RS232ENB*

2.2.1.1 Hardware Overview

The Accutorr Plus LED/CPU module controls the functions of the NIBP, receives input
data from the keypad, temperature probes and SpO
the recorder, drives the LCD display, speaker, and LEDs, is an interface connection for
central station support and has a serial I/O port for PC communication.

2.2.1.2 Software Overview

The software performs the following functions:
1. Initialize hardware and software modules.
·
microcontroller ports and communications (serial) interfaces
·
software entry points and variables
2. Perform power up diagnostics.
·
microcontroller, FLASH, and STATIC RAM tests
Accutorr Plus Service Manual
Chapter 2 - Theory of Operation
Keypad Port
8
Seg.
Digit
Driver
8
Digit U10
Configuration Port
8
Seg.
Digit
Driver
8
Digit U9
8
Seg.
Digit
16
Driver
8
Digit U8
ACONLED
RST*
Power On
Reset
U2
RTC W/
RESET*
4kX8 NVRAM
SRAM
512k x 16
U4,U5
Flash
Memory
512k x 16
TxD2 RxD2
U3, U27
Bus
CPU
Dual D/A
Converter
U22
PIO
UART
TxD1 CTS1* ACON VBULK
RxD3 RxD1
RTS1* CSTAT*
CSTAT*
Tri-State
Transceiver
VCC
EXT_RTS
EXT_CTS
RS 232
3
Xceivers
RxD
U26
TxD
module, transmits output data to
2
Resource Control Register
SPO2RST* A(2)
ACONLED
12+-15ON
ACON*
CHRGOFF
ON/OFFSW*
3
U7
8
U6
8
U?
WR_LED3*
SPO2*
HOME*
PRED*
DREQ*
TYMP*
WR_RECD*
U2 RECD*
RUN*
RECD*
HI_LOW*
RESET*
LCD_UNIT* VCC, +5VP
WR_RECD*
U2
Data
8
U?
From 1 2 Volt Ba t t ery
4 Volt
Regulator
Power Supply
U17
VBULK
Power
OFF/ON*
On/Off
Latch CHRGOFF*
Q5
Battery
U28
Backup
ACON*
Control
+5 volts
U19
+12 volts
+15 volts
RST* ON/OFFSW* -15 volts
Audio Volume Control &
2
Speaker Driver Circuitry
U24, U25
LCD View Angle Control VEE
Circuitry U23, Q8, Q9
VCC
WR_LCD*
RD_LCD*
Central Station
Port
CS_LCD*
20
pin A(2)
J3
RESET*
Serial
Port
D(7..0)
Revised 12/20/00
Keypad
18
keys
16
LEDs
30
pin
J2
Recorder
20
pin
J5
34
pin
J1
Speaker
3
pin
J6
LCD
20
pin
Figure 2-3
J8
LED/CPU
Block Diagram
2-9