Z85C3010PSG Zilog, Z85C3010PSG Datasheet - Page 134

• Manufacturer Part Number: Z85C3010PSG
• Description: IC 10MHZ Z8500 CMOS SCC 40-DIP
• Manufacturer: Zilog
• Series: SCCr

Specifications of Z85C3010PSG

• Processor Type: Z80
• Features: Error Detection and Multiprotocol Support
• Speed: 10MHz
• Voltage: 5V
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.620", 15.75mm)
• Cpu Speed: 8MHz
• Digital Ic Case Style: DIP
• No. Of Pins: 40
• Supply Voltage Range: 5V
• Operating Temperature Range: 0°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Base Number: 85
• Rohs Compliant: Yes
• Clock Frequency: 10MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3934; Z85C3010PSG

UM010901-0601
5.3.12 Read Register 11 (ESCC and 85C30
Only)
On the ESCC, Read Register 11 reflects the contents of
Write Register 10 provided the Extended Read option has
been enabled. Otherwise, this register returns an image of
RR15.
On the NMOS/CMOS version, a read to this location re-
turns an image of RR15.
5.3.13 Read Register 12
RR12 returns the value stored in WR12, the lower byte of
the time constant, for the BRG. Figure 5-26 shows the bit
positions for RR12.
5.3.14 Read Register 13
RR13 returns the value stored in WR13, the upper byte of
the time constant for the BRG. Figure 5-27 shows the bit
positions for RR13.
Read Register 13
Read Register 12
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
Figure 5-26. Read Register 12
Figure 5-27. Read Register 13
TC8
TC9
TC10
TC11
TC12
TC13
TC14
TC15
TC0
TC1
TC2
TC3
TC4
TC5
TC6
TC7
Lower Byte
of Time Constant
Upper Byte
of Time Constant
5.3.15 Read Register 14 (ESCC and 85C30
Only)
On the ESCC, Read Register 14 reflects the contents of
Write Register 7 Prime provided the Extended Read option
has been enabled. Otherwise, this register returns an im-
age of RR10.
On the NMOS/CMOS version, a read to this location re-
turns an image of RR10.
5.3.16 Read Register 15
RR15
External/Status IE bits. The two unused bits are always
returned as Os. Figure 5-28 shows the bit positions for
RR15.
Read Register 15
D7 D6 D5 D4
reflects
Figure 5-28. Read Register 15
the
D3 D2 D1 D0
value
SCC™/ESCC™ User’s Manual
stored
Register Descriptions
0
Zero Count IE
0
DCD IE
Sync/Hunt IE
CTS IE
Tx Underrun/EOM IE
Break/Abort IE
in
WR15,
5-27
the
5