Denon AVR-890 Service Manual

44
AVR-2310CI/2310/890, AVC-2310
M30879FLBFP Block Diagram
M30879FLBFP Terminal Functio
n
PIN
No.
PIN PIN NAME I/O Type DET
Lv
Cnv
Op
(in)
Op
(ex)
Res
PURE
D
CEC
STBY
STBY
STOP
P. O F F
STOP
Function
1 P96/TXD4 NC O C - - - - Z - O/L O/L O/L UART
2 P95/(CLK4) MICDET I - Lv - - Eu Z - - O/L O/L Mic insert detect
3 P94 H/PDET I - Lv - - Eu Z - - O/L O/L Headphone insert detect
4 P93 FL_DATA O C - - - Z - O/L O/L O/L FL display unit control
5 P92/TXD3 MOSI O C - 5/3 - - Z - - O/L O/L Interface between Main CPU and
Sub CPU
6 P91/RXD3 SOMIm I - Lv 5/3 - - Z - - I O/L Interface between Main CPU and
Sub CPU
7 P90/CLK3 CLKMO O C - 5/3 - - Z - - O/L O/L Interface between Main CPU and
Sub CPU
8BYTE BYTE I---------- GND
9 CNVCS CNVSS I - - - - Ed Z - - I I Firmware update control
10 P87 FL_RST O C - - - Z - O/L O/L O/L FL display unit control
11 P86 GRNLED O C - - - - Z - O/L O/L O/L H : ON Power indicator (green led) control
12 RESET RESET I - Lv - - Eu L - - I I Reset signal input
13XOUT XOUT O---------- Oscillator connect
14VSS VSS ---- ------ GND
15XIN XIN I---------- Oscillator connect
16VCC VCC ----------- POWER 5V
Figure 1.2 M32C/87 Group (M32C/87, M32C/87A, M32C/87B) Block Diagram
<VCC1>
<VCC1><VCC2>
Port P0 Port P1 Port P2 Port P3 Port P4 Port P5 Port P6 Port P7
Internal peripheral functions
Three-phase motor
control circuit
Watchdog timer (15 bits)
8-bit D/A converters:
2 circuits
Intelligent I/O
Time measurement function:
8 channels
Waveform generation
function: 16 channels
(4)
Communication function:
clock synchronous serial
interface, UART, HDLC
data processing, IEBus
CAN modules:2 channels
(5)
Serial interface: 7 channels
(3)
X/Y converter:
16 bits X 16 bits
CRC calculation circuit
(CCITT):
ᇫX
16
+ X
12
+ X
5
+ 1
Clock generation circuits:
XIN-XOUT
XCIN-XCOUT
On-chip oscillator
PLL frequency synthesizer
DMAC: 4 channels
DMACII
10-bit A/D converter:
1 circuit
34 channels for input
(2)
Port P13
(1)
Port P12
(1)
Port P11
(1)
Port P15
(1)
Port P14
(1)
Port P10 Port P9 Port P8P8_5
Timers (16 bits)
Output (timer A): 5
Input (timer B): 6
NOTES:
1. Ports P11 to P15 are provided in the 144-pin package only.
2. 34 channels are available in the 144-pin package. 26 channels are available in the 100-pin package.
3. 6 channels are available in the 100-pin package.
4. 10 channels are available in the 100-pin package.
5. M32C/87A has 1 channel. M32C/87B has no CAN module.
8
8 8 8 8 8 8 8
8
ROM
Memory
Multiplier
M32C/80 Series CPU core
FLG
ISP
INTB
USP
PC
SVF
SVP
VCTSB
FB
R3
A1
A0
R2
R1H R1L
R1H R1L
R1H R1L
R0H R0L
<VCC2>
8
5 8 7 8 8 7
RAM

Denon AVR-890 Specifications

General

Brand	Denon
Model	AVR-890
Category	Stereo Receiver
Language	English